Browse by Subject

Please select a value to browse from the list below.

Subject Heading (53280)
- A General Works (66)
  - AC Collections. Series. Collected works (3)
  - AI Indexes (General) (1)
  - AM Museums (General). Collectors and collecting (General) (18)
  - AS Academies and learned societies (General) (8)
  - AZ History of Scholarship The Humanities (11)
  - AN Newspapers (32)
- B Philosophy. Psychology. Religion (2280)
  - BC Logic (1)
  - BD Speculative Philosophy (15)
    - BD240 Methodology (3)
  - BF Psychology (1530)
    - BF1001 Parapsychology (4)
      - BF1001.1 Psychic research. Psychology of the conscious (1)
      - BF1161 Telepathy. Mind reading. Thought transference (1)
      - BF1228 Spiritualism Including mediumship, spirit messages, clairvoyance (1)
    - BF173 Psychoanalysis (18)
    - BF176 Psychological tests and testing (11)
    - BF180 Experimental psychology (7)
    - BF203 Gestalt psychology (1)
    - BF207 Psychotropic drugs and other substances (5)
    - BF231 Sensation. Aesthesiology (2)
    - BF309 Consciousness. Cognition (72)
    - BF38 Philosophy. Relation to other topics (2)
    - BF501 Motivation (933)
    - BF511 Affection. Feeling. Emotion (137)
    - BF608 Will. Volition. Choice. Control (7)
    - BF636 Applied psychology (49)
    - BF638 New Thought. Menticulture, etc. (1)
    - BF660 Comparative psychology. Animal and human psychology (1)
    - BF692 Psychology of sex. Sexual behavior (12)
    - BF697 Differential psychology. Individuality. Self (21)
    - BF698 Personality (75)
    - BF699 Genetic psychology (2)
    - BF712 Developmental psychology (27)
    - BF725 Class psychology (33)
    - BF795 Temperament. Character (39)
  - BJ Ethics (75)
    - BJ1188 Religious ethics (7)
    - BJ1388 Socialist ethics (2)
    - BJ1390 Communist ethics (2)
    - BJ1395 Feminist ethics (1)
    - BJ1518 Individual ethics. Character. Virtue (20)
    - BJ1725 Ethics of social groups, classes, etc. Professional ethics (19)
    - BJ1801 Social usages. Etiquette (6)
  - BL Religions. Mythology. Rationalism (83)
    - BL175 Natural theology (1)
    - BL350 Classification of religions (2)
    - BL410 Religions in relation to one another (6)
    - BL425 Religious doctrines (General) (2)
    - BL500 Eschatology (1)
    - BL51 Philosophy of religion. Psychology of religion. Religion in relation to other subjects (2)
    - BL624 Religious life (7)
    - BL630 Religious organization (7)
    - BL660 History and principles of religions (17)
    - BL70 Sacred books (General) (4)
    - BL71.5 Biography (5)
    - BL74 Religions of the world (1)
  - BM Judaism (8)
  - BP Islam. Bahai Faith. Theosophy, etc. (396)
    - BP1 Islam (383)
      - BP100 Sacred books (12)
        BP101 Koran (1)
        BP135 Hadith literature. Traditions. Sunna (7)
        BP137 Koranic and other Islamic legends (2)
      - BP160 General works on Islam (2)
      - BP165.5 Dogma (‘Aqa’id) (1)
      - BP166 Theology (Kalam) (2)
      - BP170.2 Benevolent work. Social work. Welfare work, etc. (4)
      - BP170.3 Missionary work of Islam (1)
      - BP171 Relation of Islam to other religions (4)
      - BP173.25 Islamic sociology (9)
      - BP174 The practice of Islam (18)
        BP176 The five duties of a Moslem. Pillars of Islam (2)
        BP188 Islamic religious life (11)
      - BP191 Branches, sects, etc. (1)
      - BP42 Study and teaching (148)
      - BP50 History (162)
      - BP70 Biography (12)
    - BP595 Anthroposophy (1)
    - BP600 Other beliefs and movements (3)
  - BQ Buddhism (6)
  - BR Christianity (20)
  - BS The Bible (4)
  - BT Doctrinal Theology (1)
  - BV Practical Theology (77)
    - BV1460 Religious Education (11)
    - BV3750 Evangelism. Revivals (1)
    - BV4000 Pastoral theology (27)
      - BV4019 Education (16)
        BV4019.1 Training for the ordained ministry (1)
        BV4168 Training for lay workers (1)
      - BV4200 Preaching. Homiletics (3)
      - BV4400 Practical church work. Social work. Work of the layman (8)
    - BV4485 Practical religion. The Christian life (22)
      - BV4625 Moral theology (13)
        BV4650 Precepts from the Bible (9)
        BV4720 Precepts of the Church. Commandments of the Church (4)
    - BV5 Worship (Public and private) (2)
      - BV169 Liturgy and ritual (1)
    - BV590 Ecclesiastical theology (12)
      - BV1620 Social life, recreation, etc., in the church (3)
      - BV598 The Church (2)
      - BV652.95 Mass media and telecommunication in religion (1)
      - BV770 Church finance. Church property (1)
      - BV800 Sacraments. Ordinances (3)
        BV835 Marriage (3)
      - BV900 Religious societies, associations, etc. (2)
  - BX Christian Denominations (4)
  - B Philosophy (General) (112)
- C Auxiliary Sciences of History (119)
  - C Auxiliary sciences of history (General) (16)
  - CB History of civilization (46)
  - CC Archaeology (12)
  - CD Diplomatics. Archives. Seals (30)
    - CD921 Archives (27)
  - CS Genealogy (4)
  - CT Biography (18)
- D History General and Old World (555)
  - D History (General) (529)
    - D051 Ancient History (10)
    - D204 Modern History (21)
    - D501 World War I (2)
    - D731 World War II (7)
    - D839 Post-war History, 1945 on (9)
    - D880 Developing Countries (50)
  - DD Germany (4)
  - DE The Mediterranean Region. The Greco-Roman World (3)
  - DH Netherlands (The Low Countries) (5)
  - DJ Netherlands (Holland) (5)
  - DS Asia (24)
- E History America (1)
  - E11 America (General) (1)
- F History United States, Canada, Latin America (1)
  - F001 United States local history (1)
- G Geography. Anthropology. Recreation (6675)
  - G Geography (General) (1156)
    - G1000 Atlases (2)
    - G154 Travel and state. Tourism (196)
    - G3160 Globes (7)
    - G3180 Maps (24)
    - G70 Philosophy. Relation to other topics. Methodology (77)
  - GA Mathematical geography. Cartography (31)
    - GA101 Cartography (4)
    - GA51 Surveys (General) (24)
  - GB Physical geography (159)
    - GB400 Geomorphology. Landforms. Terrain (48)
      - GB447 Climatic geomorphology (4)
      - GB461 Reefs (2)
      - GB471 Islands (5)
      - GB500 Mountains. Orography (3)
      - GB561 Other natural landforms: Floodplains, caves, deserts, dunes, etc. (23)
    - GB5000 Natural disasters (28)
    - GB651 Hydrology. Water (56)
      - GB980 Ground and surface waters (38)
        GB1001 Groundwater. Hydrogeology (13)
        GB1201 Rivers. Stream measurements (9)
        GB1601 Lakes. Limnology. Ponds. Lagoons (1)
        GB2601 Snow. Snow surveys (1)
        GB2801 Hydrometeorology (3)
        GB981 Watersheds. Runoff. Drainage (11)
  - GC Oceanography (34)
    - GC1080 Marine pollution. Sea water pollution (4)
    - GC150 Physical oceanography (7)
      - GC160 Temperature (4)
    - GC190 Ocean-atmosphere interaction (2)
    - GC200 Dynamics of the ocean (4)
      - GC205 Waves (2)
      - GC228.5 Ocean circulation (1)
      - GC297 Water masses and oceanic mixing (1)
    - GC377 Marine sediments (1)
    - GC401 Oceanography. By region (3)
    - GC63 Oceanographic expeditions (1)
    - GC65 Underwater exploration (1)
    - GC83 Submarine topography (2)
  - GE Environmental Sciences (144)
  - GF Human ecology. Anthropogeography (91)
    - GF101 Settlements (13)
      - GF125 Cities. Urban geography (2)
      - GF127 Rural settlements. Rural geography (6)
    - GF500 By region or country (1)
    - GF51 Environmental influences on humans (5)
    - GF75 Human influences on the environment (9)
  - GN Anthropology (1364)
    - GN281 Human evolution (39)
      - GN282 Fossil man. Human paleontology (5)
    - GN296 Medical anthropology (20)
    - GN301 Ethnology. Social and cultural anthropology (401)
    - GN357 Culture and cultural processes (359)
    - GN406 Cultural traits, customs, and institutions (78)
    - GN406.1 Technology. Material culture (99)
    - GN448 Economic organization. Economic anthropology (109)
    - GN451 Intellectual life (123)
    - GN478 Social organization (72)
    - GN492 Political organization. Political anthropology (38)
    - GN495.4 Societal groups, ethnocentrism, diplomacy, warfare, etc. (15)
    - GN502 Psychological anthropology (54)
    - GN537 Ethnic groups and races (466)
  - GR Folklore (118)
    - GR420 Costume, jewelry (2)
    - GR430 Folklore relating to private life (15)
    - GR72 Folk literature (General) including folktales, legends (33)
    - GR81 Folk beliefs, superstitions, etc. (General) (5)
    - GR880 Medicine. Folk medicine (5)
    - GR931 Signs and symbols (10)
    - GR940 Mythical places (8)
  - GT Manners and customs (165)
    - GT2400 Customs relative to private life Including children, marriage, eating and drinking, funeral customs, etc. (50)
    - GT3400 Customs relative to public and social life Including town life, court life, festivals, holidays, ceremonies of royalty, etc. (7)
    - GT485 Churches and church going (4)
    - GT495 Human body and its parts. Personal beauty (29)
    - GT500 Costume. Dress. Fashion (42)
    - GT5220 Customs relative to transportation and travel (6)
    - GT5320 Customs relative to special classes (2)
  - GV Recreation Leisure (3814)
    - GV1199 Games and amusements (72)
      - GV1201.5 Hobbies (General) (2)
      - GV1203 Children's games and amusements (39)
      - GV1221 Indoor games and amusements (12)
        GV1232 Card games: Poker, patience, whist, etc. (1)
        GV1301 Gambling. Chance and banking games (2)
        GV1312 Board games. Move games (1)
        GV1469.15 Computer games. Video games. Fantasy games (4)
        GV1470 Parties. Party games and stunts (3)
        GV1491 Puzzles (1)
    - GV1580 Dancing (152)
    - GV191 Outdoor life. Outdoor recreation (25)
      - GV191.68 Camping (2)
        GV198.945 Farm vacations, dude ranches, etc. (1)
      - GV199 Hiking. Pedestrian tours (1)
      - GV200.4 Orienteering. Wilderness survival (3)
    - GV201 Physical education and training (1081)
      - GV346 School and college athletics. Intramural and interscholastic athletics (36)
      - GV401 Physical education facilities. Sports facilities (221)
      - GV435 Physical measurements. Physical tests, etc. (109)
      - GV450 Nudism. Sunbathing (1)
      - GV460 Gymnastics. Gymnastic exercises (44)
    - GV557 Sports (3109)
      - GV1020 Automobile travel. Motoring. Automobile racing (1)
      - GV1040 Cycling. Bicycling. Motorcycling (2)
      - GV1060.5 Track and field athletics (30)
      - GV1100 Fighting sports: Bullfighting, boxing, fencing, etc. (162)
      - GV1151 Shooting. Archery (41)
      - GV1195 Wrestling (18)
      - GV711 Coaching (53)
      - GV712 Athletic contests. Sports events (150)
      - GV733 Professionalism in sports. Professional sports (General) (71)
      - GV735 Umpires. Sports officiating (21)
      - GV743 Athletic and sporting goods, supplies, etc. (335)
      - GV750 Air sports: Airplane flying, kiteflying, bungee jumping, etc. (87)
      - GV770 Water sports: Canoeing, sailing, yachting, scuba diving, etc. (91)
      - GV840 Winter sports: Ice hockey, skiing, bobsledding, snowmobiling, etc. (37)
      - GV861 Ball games: Baseball, football, golf, etc. (1312)
- H Social Sciences (7957)
  - H Social Sciences (General) (828)
  - HA Statistics (17)
  - HB Economic Theory. Demography (2737)
    - HB135 Mathematical economics (20)
    - HB221 Price (65)
    - HB238 Competition. Production. Wealth (44)
    - HB3711 Business cycles. Economic fluctuations (110)
    - HB501 Capital. Capitalism (103)
    - HB522 Income. Factor shares (130)
      - HB535 Interest (2)
      - HB601 Profit (14)
    - HB615 Entrepreneurship. Risk and uncertainty. (424)
    - HB71 Economics as a science (351)
    - HB75 History of economics. History of economic theory (36)
    - HB801 Consumption. Demand (36)
    - HB846 Welfare theory (4)
    - HB848 Demography. Population. Vital events (41)
  - HC Economic History and Conditions (263)
  - HD Industries. Land use. Labor (1019)
    - HD28 Management. Industrial Management (329)
    - HD61 Risk Management (25)
    - HD101 Land use Land tenure (5)
    - HD1401 Agriculture (26)
    - HD2321 Industry (78)
      - HD2329 Industrialization (7)
      - HD2330 Rural industries (4)
      - HD2331 Home labor. Home-based businesses (24)
      - HD2340 Small and medium-sized businesses, artisans, handicrafts, trades (17)
    - HD2350 Large industry. Factory system. Big business (74)
      - HD2421 Trade associations (3)
      - HD2709 Corporations (24)
      - HD2951 Cooperation. Cooperative societies (18)
      - HD3611 Industrial policy. The state and industrial organization (14)
    - HD4801 Labor. Work. Working class (197)
      - HD4909 Wages (7)
      - HD5106 Hours of labor Including overtime, shift work, sick leave, vacations (4)
      - HD5650 Employee participation in management. (74)
      - HD5701 Labor market. Labor supply. Labor demand (14)
      - HD6941 Employers' associations (1)
      - HD7088 Social insurance. Social security. Pension (4)
      - HD7260 Industrial hygiene. Industrial welfare (3)
      - HD7795 Labor policy. Labor and the state (13)
      - HD8038 Professions (General). Professional employees (23)
    - HD56 Industrial productivity (5)
    - HD58.7 Organizational behavior, change and effectiveness. Corporate culture (51)
    - HD72 Economic growth, development, planning (198)
    - HD9000 Special industries and trades (64)
      - HD9001 Agricultural industries (3)
      - HD9502 Energy industries. Energy policy. Fuel trade (12)
      - HD9506 Mineral industries. Metal trade (6)
      - HD9680 Mechanical industries (2)
      - HD9715 Construction industry (3)
      - HD9720 Manufacturing industries (35)
  - HE Transportation and Communications (98)
    - HE1001 Railroads. Rapid transit systems (1)
    - HE199.9 Passenger traffic (General) (2)
    - HE323 Transportation geography. Trade routes (21)
    - HE380.8 Water transportation (4)
    - HE5601 Automotive transportation Including trucking, bus lines, and taxicab service (20)
    - HE9761 Air transportation. Airlines (3)
  - HF Commerce (1815)
    - HF1021 Commercial geography. Economic geography (31)
    - HF1040 Commodities. Commercial products (53)
    - HF1701 Tariff. Free trade. Protectionism (6)
    - HF3000 By region or country (6)
    - HF5001 Business (1533)
      - HF5601 Accounting. Bookkeeping (627)
      - HF5381 Vocational guidance. Career devlopment (20)
      - HF5410 Marketing. Distribution of products (164)
      - HF5429 Shopping centers. Shopping malls (4)
      - HF5437 Purchasing. Selling. Sales personnel. Sales executives (65)
      - HF5469.7 Markets. Fairs (41)
      - HF5520 Office equipment and supplies (25)
      - HF5546 Office management (326)
      - HF5549 Personnel management. Employment management (207)
      - HF5717 Business communication (40)
      - HF5801 Advertising (29)
  - HG Finance (1252)
    - HG1501 Banking (95)
      - HG1621 Interest rates. Interest tables (9)
      - HG1641 Bank loans. Bank credit. Commercial loans (12)
      - HG1651 Discount (1)
      - HG1656 Bank reserves. Bank liquidity. Loan loss reserves (5)
      - HG1660 Bank accounts. Bank deposits. Deposit banking (15)
      - HG1709 Data processing (1)
      - HG1722 Bank mergers (1)
      - HG1723 Bank stocks. Banking as an investment (6)
      - HG1725 Banks and the state. State supervision of banks (2)
      - HG1811 Special classes of banks and financial institutions (23)
      - HG2397 By region or country (3)
    - HG1706 Accounting. Bookkeeping (608)
    - HG201 Money (41)
    - HG3691 Credit. Debt. Loans (12)
    - HG3810 Foreign exchange. International finance. International monetary system (58)
    - HG4001 Finance management. Business finance. Corporation finance (214)
    - HG4301 Trust services. Trust companies (40)
    - HG4501 Investment, capital formation, speculation (121)
      - HG4530 Investment companies. Investment trusts. Mutual funds (18)
      - HG4538 Foreign investments (7)
      - HG4551 Stock exchanges (18)
      - HG4621 Stockbrokers. Security dealers. Investment advisers (2)
      - HG4701 Government securities. Industrial securities. Venture capital (25)
    - HG8011 Insurance (38)
      - HG8053.5 Insurance for professions. Malpractice insurance. Professional liability insurance (1)
      - HG8059 Business insurance (3)
      - HG8075 Insurance business. Insurance management (2)
      - HG8111 Government policy. State supervision (17)
      - HG8751 Life insurance (15)
        HG8779 Actuarial science. Statistical theory and methodology applied to insurance (3)
        HG8799 By class insured, by risk, by plan (3)
        HG8835 Life insurance business. Management (2)
        HG8901 Government policy. State supervision HG8941-9200.5 By region or country (5)
      - HG9371 Health insurance (4)
  - HJ Public Finance (492)
    - HJ2005 Income and expenditure. Budget (92)
    - HJ2240 Revenue. Taxation. Internal revenue (98)
      - HJ2338 Taxation of government property (8)
      - HJ2351 Inflation and taxation (37)
      - HJ4629 Income tax (24)
      - HJ5309 Administrative fees. User charges. License fees (11)
    - HJ7461 Expenditures. Government spending (7)
    - HJ9103 Local finance. Municipal finance (20)
    - HJ9701 Public accounting. Auditing (247)
  - HM Sociology (536)
    - HM1001 Social psychology (76)
      - HM1041 Social perception. Social cognition (8)
      - HM1106 Interpersonal relations. Social behavior (43)
    - HM1176 Social influence. Social pressure (73)
    - HM621 Culture (226)
    - HM661 Social control (30)
    - HM706 Social structure (38)
    - HM756 Community (57)
    - HM831 Social change (16)
  - HN Social history and conditions. Social problems. Social reform (204)
  - HQ The family. Marriage. Woman (442)
    - HQ1073 Thanatology. Death. Dying (5)
    - HQ1075 Sex role (1)
    - HQ1088 Men (2)
    - HQ1101 Women. Feminism (48)
      - HQ1871 Women's clubs (18)
    - HQ12 Sexual life (12)
      - HQ101 Prostitution (3)
      - HQ19 Sexual behavior and attitudes. Sexuality (2)
      - HQ31 Sex instruction and sexual ethics (1)
      - HQ75 Homosexuality. Lesbianism (5)
    - HQ2035 Life skills. Coping skills. Everyday living skills (9)
    - HQ2042 Life style (25)
    - HQ503 The family. Marriage. Home (227)
      - HQ1001 The state and marriage (3)
      - HQ1051 The church and marriage (1)
      - HQ755.7 Parents. Parenthood (79)
      - HQ760 Family size (15)
      - HQ793 Youth. Adolescents. Teenagers (27)
      - HQ799.5 Young men and women (5)
      - HQ799.95 Adulthood (8)
      - HQ801 Man-woman relationships. Courtship. Dating (5)
      - HQ802.5 Matrimonial advertisements (1)
      - HQ803 Temporary marriage. Trial marriage. Companionate marriage (3)
      - HQ806 Adultery (1)
      - HQ811 Divorce (8)
      - HQ961 Free love (1)
    - HQ767 Children. Child development (62)
  - HS Societies secret benevolent etc (9)
  - HT Communities. Classes. Races (126)
    - HT101 Urban groups. The city. Urban sociology (35)
      - HT165 City planning (9)
    - HT388 Regional economics. Space in economics (34)
  - HV Social pathology. Social and public welfare (152)
    - HV551 Emergency management (4)
      - HV553 Relief in case of disasters (2)
    - HV6001 Criminology (40)
      - HV6035 Criminal anthropology (9)
      - HV6251 Crimes and offenses (17)
    - HV697 Protection, assistance and relief (70)
      - HV3025 Special classes. By occupation (1)
      - HV4005 Immigrants (7)
      - HV4023 Poor in cities. Slums (3)
      - HV4480 Mendicancy. Vagabondism. Tramps. Homelessness (3)
      - HV4701 Protection of animals. Animal rights. Animal (1)
      - HV697.1 Special classes (48)
        HV1421 Young adults. Youth. Teenagers (6)
        HV1442 Women (3)
        HV1449 Gay men. Lesbians (1)
        HV1551 People with disabilities Including blind, deaf, people with physical and mental disabilities (4)
        HV697.11 Families. Mothers. Widow's pensions (15)
        HV701 Children (19)
        HV873 Destitute, neglected, and abandoned children. Street children (1)
        HV888 Children with disabilities (4)
        HV959 Orphanages. Orphans (1)
    - HV8301 Penology. Prisons. Corrections (2)
      - HV9051 The juvenile offender. Juvenile delinquency. Reform schools, etc. (2)
  - HX Socialism. Communism. Anarchism (8)
- J Political Science (517)
  - J General legislative and executive papers (38)
  - JA Political science (General) (106)
  - JC Political theory (111)
    - JC311 Nationalism. Nation state (33)
    - JC328 Violence. Political violence (8)
    - JC348 Forms of the state (1)
    - JC571 Purpose, functions, and relations of the state (18)
  - JF Political institutions (General) (224)
    - JF1338 Public administration (165)
      - JF1501 Civil service (106)
      - JF2011 Political parties (10)
    - JF20 General. Comparative government (47)
      - JF225 Organs and functions of government (8)
        JF491 Legislation. Legislative process. Law-making (5)
      - JF51 General works. History (7)
      - JF799 Political rights. Political participation (24)
  - JK Political institutions (United States) (4)
  - JQ Political institutions Asia (3)
  - JS Local government. Municipal government (127)
    - JS221 Elections. Local elections. Municipal elections (45)
  - JV Colonies and colonization. Emigration and immigration. International migration (3)
  - JZ International relations (2)
    - JZ1305 Scope of international relations. Political theory. Diplomacy (2)
- K Law (351)
  - K Law (General) (319)
    - K1150 Maritime law (3)
    - K201 Jurisprudence. Philosophy and theory of law (8)
    - K3154 Constitutional law (89)
      - K3161 Constitutional history (6)
      - K3171 Constitutional principles (14)
      - K3184 Form and structure of government (16)
      - K3195 National territory (2)
      - K3201 Foreign relations administration (8)
      - K3220 Public policy (27)
      - K3224 Individual and state (9)
      - K3280 Church and state (1)
      - K3289 Organs of government (20)
        K3290 The people. Election law (7)
        K3332 Heads of state and the central government (6)
        K3367 The judiciary (1)
      - K3370 Constitutional courts and procedure (10)
    - K520 Comparative law. International uniform law (121)
      - K1401 Intellectual property (4)
        K1411 Copyright (2)
        K1500 Industrial property (1)
      - K1700 Social legislation (1)
      - K2100 Courts. Procedure (1)
      - K3150 Public law (7)
      - K3400 Administrative law (2)
      - K3440 Civil service. Government officials and employees (11)
      - K3566 Public health (11)
      - K3581 Environmental law (4)
      - K3601 Medical legislation (1)
      - K3625 Food. Drugs. Cosmetics (10)
      - K3661 Public safety (2)
      - K3700 Control of social activities (1)
      - K3740 Education (13)
      - K3770 Science and arts. Research (6)
      - K3820 Economic constitution, policy, planning, and development (25)
      - K3840 Regulation of industry, trade, and commerce. Occupational law (4)
      - K4700 Government measures in time of war, national emergency, or economic crisis (6)
      - K5000 Criminal law and procedure (9)
      - K623 Civil law (10)
      - K970 Compensation to victims of crime. Reparation (1)
    - K7000 Private international law. Conflict of laws (17)
      - K7200 Property (1)
      - K7340 Commercial law (4)
      - K7585 Social legislation (4)
      - K7611 Civil procedure. International civil procedure (4)
      - K7720 Recognition of foreign administrative acts (1)
  - KD Law of the United Kingdom and Ireland (1)
  - KF Law of the United States (1)
  - KZ Law of Nations (35)
  - KB Religious law in general. Comparative religious law. Jurisprudence (1)
  - KBP Islamic law. Sharī'ah. Fiqh (1)
  - KBR History of canon law (2)
- L Education (33379)
  - L Education (General) (5409)
    - L101 Yearbooks (1)
    - L111 Official documents, reports, etc. (38)
    - L7 Periodicals. Societies (14)
    - L797 Educational exhibitions and museums (16)
    - L899 School fairs (17)
    - L900 Directories of educational institutions (12)
  - LA History of education (206)
    - LA173 Higher education (50)
    - LA2301 Biography (14)
    - LA31 By period (13)
    - LA410 Other regions or countries (28)
    - LA5 General (17)
  - LB Theory and practice of education (29915)
    - LB1501 Primary Education (2037)
    - LB1603 Secondary Education. High schools (12440)
    - LB2300 Higher Education (4238)
      - LB2361 Curriculum (2484)
      - LB2326.4 Institutions of higher education (143)
      - LB2331.7 Teaching personnel (1194)
      - LB2335.86 Trade unions (1)
      - LB2335.95 Endowments, trusts, etc. (1)
      - LB2337.2 Student financial aid (7)
      - LB2341 Supervision and administration. Business management (347)
      - LB2351 Admissions and entrance requirements (3)
      - LB2366 College examinations (26)
      - LB2371 Graduate education (111)
      - LB2381 Academic degrees (129)
    - LB1025 Teaching (Principles and Practice) (11315)
      - LB1049 Reading (General) (522)
    - LB1050 Educational Psychology (781)
    - LB1101 Child study (257)
    - LB1139 Early childhood education (313)
    - LB1140 Preschool education. Nursery schools (52)
    - LB1141 Kindergarten (371)
    - LB1555 Elementary or public school education (1199)
    - LB1705 Education and training of teachers and administrators (1211)
      - LB1771 Certification of teachers (164)
      - LB1775 Professional aspects of teaching and school administrators. Vocational guidance (724)
      - LB1805 State teachers colleges (28)
      - LB2165 Teacher training in universities and colleges (107)
    - LB2801 School Administration and Organization (853)
      - LB2831 Administrative personnel (139)
      - LB2832 Teaching personnel (364)
    - LB3011 School management and discipline (917)
      - LB3045 Textbooks (101)
      - LB3050 Educational tests, measurements, evaluations and examinations (214)
    - LB3201 School architecture and equipment. School physical facilities. Campus planning (33)
    - LB3401 School hygiene. School health services (25)
    - LB3602 School life. Student manners and customs (43)
    - LB51 Systems of individual educators and writers (12)
  - LC Special aspects of education (4223)
    - LC5201 Education extension. Adult education. Continuing education (201)
    - LC1022 Computer-assisted education (448)
    - LC1031 Competency based education (158)
    - LC1035 Basic education. Basic skills education (167)
    - LC1037 Career education (52)
    - LC1041 Vocational education (General) (641)
    - LC1051 Professional education (43)
    - LC1090 Political education (78)
    - LC1099 Multicultural education (40)
    - LC149 Literacy. Illiteracy (193)
    - LC189 Educational sociology (100)
      - LC212 Discrimination in education (10)
      - LC212.9 Sex differences in education (8)
      - LC213 Educational equalization. Right to education (9)
    - LC241 Foundations, endowments, funds (2)
    - LC25 Self-education. Self-culture (132)
    - LC251 Moral education. Character building (663)
    - LC321 Religion and education (43)
    - LC361 Christian education (18)
    - LC37 Home education (46)
    - LC3950 Exceptional children and youth. Special education (68)
      - LC3991 Gifted children and youth (3)
      - LC4001 Children and youth with disabilities. Learning disabled children and youth (31)
    - LC45 Nonformal education (86)
    - LC47 Private school education (18)
    - LC5900 Correspondence schools (10)
    - LC71 Education and the state (9)
    - LC901 Islamic education (53)
  - LD Individual institutions (United States) (6)
  - LF Individual institutions (Europe) (3)
  - LG Individual institutions (Asia. Africa) (3)
  - LT Textbooks (222)
  - LH College and school magazines and papers (15)
  - LJ Student fraternities and societies, United States (4)
- M Music and Books on Music (1143)
  - M Music (780)
    - M1495 Vocal music (68)
    - M5 Instrumental music (217)
      - M1000 Orchestra (24)
      - M1200 Band (21)
      - M1375 Instrumental music for children (24)
      - M1470 Aleatory music. Electronic music. Mixed media (16)
      - M176 Motion picture music (9)
      - M176.5 Radio and television music (7)
      - M6 One solo instrument (1)
  - ML Literature on music (371)
    - ML3400 Dance music (264)
  - MT Instruction and study (422)
    - MT170 Instrumental techniques (21)
    - MT18 Music in colleges and universities (125)
    - MT35 Notation (8)
    - MT40 Composition. Elements and techniques of music (40)
    - MT68 Improvisation. Accompaniment. Transposition (5)
    - MT70 Instrumentation and orchestration (28)
    - MT820 Singing and vocal technique (58)
    - MT85 Conducting. Score reading and playing (5)
    - MT88 Administration and instruction of vocal groups (1)
- N Fine Arts (1021)
  - N Visual arts (71)
  - NA Architecture (62)
    - NA100 Architecture and the state (3)
    - NA190 History (7)
    - NA1995 Architecture as a profession (3)
    - NA2000 Study and teaching. Research (10)
    - NA2400 Museums. Exhibitions (4)
    - NA2599.5 Architectural criticism (1)
    - NA2695 Architectural drawing and design (13)
    - NA2835 Details and decoration (4)
    - NA4100 Special classes of buildings (9)
      - NA4170 Classed by use (3)
        NA4171 Public buildings (3)
    - NA9000 Aesthetics of cities. City planning and beautifying (2)
  - NB Sculpture (146)
    - NB1120 Study and teaching (103)
    - NB1160 Designs and technique (45)
    - NB1203 Special materials (2)
    - NB60 History (10)
  - NC Drawing. Design. Illustration (243)
    - NC390 Study and teaching (83)
    - NC997 Commercial art. Advertising art (32)
  - ND Painting (104)
    - ND1115 Study and teaching (27)
    - ND1470 Technique and materials (29)
    - ND1630 Examination and conservation of paintings (3)
    - ND1700 Watercolor painting (13)
    - ND2550 Mural painting (3)
    - ND2889 Illuminating of manuscripts and books (5)
    - ND49 History (1)
  - NE Print media (42)
    - NE1 Printmaking and engraving (12)
      - NE218 Engraved portraits. Self-portraits (1)
      - NE970 Study and teaching (6)
    - NE1000 Wood engraving (9)
    - NE1400 Metal engraving (3)
  - NK Decorative arts (152)
    - NK1160 Decoration and ornament. Design (79)
    - NK1700 Interior decoration. House decoration (26)
    - NK3700 Ceramics (12)
    - NK8800 Textiles (13)
  - NX Arts in general (382)
    - NX280 Study and teaching. Research (95)
    - NX411 Competitions (2)
    - NX420 Exhibitions (7)
    - NX440 History of the arts (37)
    - NX650 Special subjects, characters, persons, religious arts, etc. (64)
    - NX760 Administration of the arts (1)
    - NX798 Arts centers and facilities (9)
- P Language and Literature (6858)
  - P Philology. Linguistics (3264)
    - P101 Language. Linguistic theory. Comparative grammar (1089)
    - P118 Language acquisition (260)
    - P121 Science of language (Linguistics) (254)
    - P201 Comparative grammar (199)
    - P301 Style. Composition. Rhetoric (92)
    - P302 Discourse analysis (314)
    - P306 Translating and interpreting (213)
    - P321 Etymology (26)
    - P325 Semantics (89)
    - P326 Lexicology (24)
    - P327 Lexicography (4)
    - P375 Linguistic geography (34)
    - P87 Communication. Mass media (265)
    - P901 Extinct ancient or medieval languages (1)
    - P94 Interpersonal communication (157)
    - P95 Oral communication. Speech (274)
    - P98 Computational linguistics. Natural language processing (55)
    - P99 Semiotics. Signs and symbols (61)
    - P99.5 Nonverbal communication (49)
  - PA Classical philology (17)
    - PA201 Greek philology and language (1)
  - PB Modern European Languages (11)
    - PB1501 Gaelic (Scottish Gaelic, Erse) (1)
  - PC Romance languages (540)
    - PC2001 French (522)
  - PD Germanic languages (574)
  - PE English (1261)
    - PE1700 Dialects. Provincialisms, etc. (64)
    - PE3701 Slang. Argot, etc. (12)
  - PF West Germanic (21)
  - PG Slavic, Baltic, Albanian languages and literature (1)
  - PH Finno-Ugrian, Basque languages and literatures (1)
  - PI Oriental languages and literatures (45)
  - PJ Semitic (49)
    - PJ6001 Arabic (14)
      - PJ6073 Language (14)
  - PK Indo-Iranian (11)
  - PL Languages and literatures of Eastern Asia, Africa, Oceania (1124)
    - PL1001 Chinese language (9)
    - PL5051 Malayan (Indonesia) languages (1047)
  - PN Literature (General) (1487)
    - PN0080 Criticism (21)
    - PN0441 Literary History (42)
    - PN1990 Broadcasting (60)
      - PN1992 Television broadcasts (2)
    - PN1993 Motion Pictures (66)
      - PN1997 Plays, scenarios, etc (2)
    - PN2000 Dramatic representation. The Theater (97)
    - PN1010 Poetry (171)
    - PN1600 Drama (91)
    - PN3311 Prose. Prose fiction (160)
    - PN4001 Oratory. Elocution, etc. (32)
    - PN4177 Debating (67)
    - PN4400 Letters (Literary history) (43)
    - PN4500 Essays (Literary history) (18)
    - PN4699 Journalism. The periodical press, etc. (61)
      - PN4775 Technique. Practical journalism (16)
    - PN6120 Fiction (102)
    - PN6146.5 Wit and humor (2)
    - PN6259 Anecdotes. Table talk (1)
    - PN6400 Proverbs (16)
    - PN6700 Comic books, strips, etc. (3)
  - PQ Romance literatures (35)
  - PR English literature (639)
    - PR1 Literary history and criticism (17)
    - PR111 Women authors (6)
    - PR500 Poetry (26)
    - PR57 Criticism (10)
    - PR621 Drama (31)
    - PR750 Prose (152)
      - PR767 By period (1)
      - PR821 Prose fiction. The novel (142)
  - PT Germanic literature (51)
  - PZ Childrens literature (5)
- Q Science (14215)
  - Q Science (General) (753)
  - QA Mathematics (4591)
    - QA75.5 Electronic computers. Computer science (138)
    - QA76 Computer software (179)
    - QA101 Elementary mathematics. Arithmetic (183)
    - QA150 Algebra (163)
    - QA273 Probabilities. Mathematical statistics (165)
    - QA299 Analysis (289)
    - QA440 Geometry. Trigonometry. Topology (153)
    - QA71 Instruments and machines (79)
    - QA75 Calculating machines (21)
    - QA801 Analytic mechanics (147)
  - QB Astronomy (1)
  - QC Physics (2796)
    - QC120 Descriptive and Experimental mechanics (340)
    - QC170 Atomic physics. Constitution and properties of matter including molecular physics, relativity, quantum theory, and solid state physics (207)
    - QC221 Acoustics. Sound (47)
    - QC251 Heat (174)
    - QC310 Thermodynamics (81)
    - QC350 Optics. Light (70)
    - QC474 Radiation physics (General) (21)
    - QC501 Electricity (183)
    - QC669 Electromagnetic theory (62)
    - QC717.6 Plasma physics. Ionized gases (7)
    - QC750 Magnetism (36)
    - QC770 Nuclear and particle physics. Atomic energy. Radioactivity (30)
    - QC801 Geophysics. Cosmic physics (85)
    - QC81 Weights and measures (19)
    - QC811 Geomagnetism (11)
    - QC851 Meteorology. Climatology (13)
    - QC980 Climatology and weather (27)
  - QD Chemistry (3006)
    - QD146 Inorganic chemistry (125)
    - QD241 Organic chemistry (274)
    - QD415 Biochemistry (214)
    - QD450 Physical and theoretical chemistry (803)
    - QD625 Radiation chemistry (44)
    - QD701 Photochemistry (26)
    - QD71 Analytical chemistry (476)
    - QD901 Crystallography (14)
  - QE Geology (26)
    - QE351 Mineralogy (8)
    - QE500 Dynamic and structural geology (7)
  - QH Natural history (2799)
    - QH301 Biology (2648)
      - QH359 Evolution (60)
      - QH471 Reproduction (129)
      - QH501 Life (72)
      - QH540 Ecology (271)
      - QH573 Cytology (24)
      - QH705 Economic biology (42)
    - QH426 Genetics (48)
  - QK Botany (486)
    - QK474 Spermatophyta. Phanerogams (22)
      - QK494 Gymnosperms (1)
      - QK495 Angiosperms (14)
    - QK504 Cryptogams (15)
    - QK640 Plant anatomy (148)
    - QK710 Plant physiology (139)
    - QK900 Plant ecology (74)
  - QL Zoology (271)
    - QL360 Invertebrates (49)
      - QL461 Insects (27)
    - QL605 Chordates. Vertebrates (62)
      - QL614 Fishes (24)
      - QL640 Reptiles and amphibians (5)
      - QL671 Birds (8)
      - QL700 Mammals (15)
    - QL750 Animal behavior (23)
      - QL791 Stories and anecdotes (1)
    - QL799 Morphology (30)
    - QL801 Anatomy (29)
    - QL951 Embryology (21)
  - QM Human anatomy (155)
  - QP Physiology (59)
  - QR Microbiology (233)
    - QR180 Immunology (30)
    - QR355 Virology (25)
    - QR75 Bacteria (104)
- R Medicine (502)
  - R Medicine (General) (37)
    - R702 Medicine and the humanities. Medicine and disease in relation to history, literature, etc. (1)
    - R735 Medical education. Medical schools. Research (1)
    - R856 Biomedical engineering. Electronics. Instrumentation (3)
    - R858 Computer applications to medicine. Medical informatics (1)
    - R895 Medical physics. Medical radiology. Nuclear medicine (1)
  - RA Public aspects of medicine (217)
    - RA0421 Public health. Hygiene. Preventive Medicine (40)
    - RA1001 Forensic Medicine. Medical jurisprudence. Legal medicine (1)
    - RA1190 Toxicology. Poisons (1)
    - RA601 Food and food supply in relation to public health (64)
    - RA643 Disease (Communicable and noninfectious) and public health (17)
    - RA773 Personal health and hygiene (85)
    - RA790 Mental health. Mental illness prevention (1)
    - RA960 Medical centers. Hospitals. Dispensaries. Clinics Including ambulance service, nursing homes, hospices (2)
  - RB Pathology (16)
    - RB127 Manifestations of disease (1)
    - RB151 Theories of disease. Etiology. Pathogenesis (2)
    - RB24 Pathological anatomy and histology (4)
    - RB37 Clinical pathology. Laboratory technique (7)
  - RC Internal medicine (71)
    - RC254 Neoplasms. Tumors. Oncology (including Cancer) (2)
    - RC321 Neuroscience. Biological psychiatry. Neuropsychiatry (11)
      - RC346 Neurology. Diseases of the nervous system (8)
        RC435 Psychiatry (8)
        RC490 Hypnotism and hypnosis. Suggestion therapy (1)
        RC554 Personality disorders. Behavior problems (5)
        RC569.7 Mental retardation. Developmental disabilities (1)
    - RC1200 Sports Medicine (9)
    - RC49 Psychosomatic medicine (1)
    - RC581 Specialties of internal medicine (43)
      - RC582 Immunologic diseases. Allergy (1)
      - RC620 Nutritional diseases. Deficiency diseases (17)
      - RC627.5 Metabolic diseases (2)
      - RC633 Diseases of the blood and blood-forming organs (8)
      - RC648 Diseases of the endocrine glands. Clinical endocrinology (1)
      - RC666 Diseases of the circulatory (Cardiovascular) system (3)
      - RC705 Diseases of the respiratory system (9)
      - RC799 Diseases of the digestive system. Gastroenterology (2)
      - RC870 Diseases of the genitourinary system. Urology (1)
    - RC86 Medical emergencies. Critical care. Intensive care. First aid (2)
  - RD Surgery (1)
  - RG Gynecology and obstetrics (8)
    - RG159 Functional and systemic disorders. Endocrine gynecology (2)
    - RG500 Obstetrics (4)
      - RG551 Pregnancy (1)
      - RG651 Labor. Parturition (1)
      - RG940 Maternal care. Prenatal care services (2)
  - RJ Pediatrics (85)
    - RJ101 Child Health. Child health services (6)
    - RJ125 Physiology of children and adolescents (1)
    - RJ206 Nutrition and feeding of children and adolescents (32)
    - RJ240 Immunization of children (General) (1)
    - RJ242 Hospital care (1)
    - RJ245 Nursing of children. Pediatric nursing (3)
    - RJ370 Diseases of children and adolescents (4)
      - RJ499 Mental disorders. Child psychiatry (3)
    - RJ47.3 Genetic aspects (1)
    - RJ50 Examination. Diagnosis (1)
    - RJ59 Infant and neonatal morbidity and mortality (1)
    - RJ91 Supposed prenatal influence. Prenatal culture. Stirpiculture (35)
  - RL Dermatology (6)
    - RL201 Hyperemias, inflammations, and infections of the skin (2)
  - RM Therapeutics. Pharmacology (31)
    - RM139 Prescription writing (2)
    - RM146 Misuse of therapeutic drugs. Medication errors (1)
    - RM259 Vitamin therapy (1)
    - RM270 Immunotherapy. Serotherapy (1)
    - RM300 Drugs and their actions (7)
    - RM671 Nonprescription drugs. Patent medicines (1)
    - RM695 Physical medicine. Physical therapy (10)
  - RS Pharmacy and materia medica (99)
    - RS125 Formularies. Collected prescriptions (1)
    - RS139 Pharmacopoeias (2)
    - RS153 Materia medica (88)
      - RS160 Pharmacognosy. Pharmaceutical substances (Plant, animal, and inorganic) (87)
    - RS189 Assay methods. Standardization. Analysis (3)
    - RS192 Pharmaceutical technology (1)
    - RS250 Commercial preparations. Patent medicines (1)
    - RS400 Pharmaceutical chemistry (1)
  - RT Nursing (4)
  - RV Botanic, Thomsonian, and eclectic medicine (7)
  - RZ Other systems of medicine (3)
- S Agriculture (401)
  - S Agriculture (General) (169)
    - S530 Agricultural education (14)
      - S539.5 Research. Experimentation (4)
      - S548 Historic farms (1)
    - S560 Farm economics. Farm management. Agricultural mathematics (21)
    - S583 Agricultural chemistry. Agricultural chemicals (6)
    - S588.4 Agricultural physics Including radioisotopes in agriculture (1)
    - S589.7 Agricultural ecology (7)
    - S589.75 Agriculture and the environment (14)
    - S589.8 Plant growing media. Potting soils (19)
    - S590 Soils. Soil science (6)
    - S602 Methods and systems of culture. Cropping systems (6)
    - S604.5 Agricultural conservation (8)
    - S604.8 Melioration: Improvement, reclamation, fertilization, irrigation, etc., of lands (12)
      - S605.5 Organic farming. Organiculture (2)
      - S606 Special classes of lands and reclamation methods (4)
    - S622 Soil conservation and protection (2)
    - S631 Fertilizers and improvement of the soil (16)
    - S671 Farm machinery and farm engineering (2)
    - S770 Agricultural structures. Farm buildings (2)
    - S900 Conservation of natural resources including land conservation (3)
  - SB Plant culture (145)
    - SB107 Economic botany (14)
    - SB112 Irrigation farming (2)
    - SB113.2 Seeds. Seed technology (2)
    - SB118.48 Nurseries. Nursery industry (4)
    - SB119 Propagation Including breeding, selection, grafting, air layering (1)
    - SB125 Training and pruning (1)
    - SB126.5 Hydroponics. Soilless agriculture (4)
    - SB128 Growth regulators (7)
    - SB175 Food crops (3)
    - SB183 Field crops (2)
    - SB320 Vegetables (8)
    - SB354 Fruit and fruit culture (15)
      - SB401 Nuts (1)
    - SB39 Horticultural voyages, etc. (2)
    - SB403 Flowers and flower culture. Ornamental plants (9)
      - SB406.7 Plant propagation (1)
      - SB419.5 Roof gardening. Balcony gardening (1)
      - SB421 Classes of plants Including annuals, climbers, ferns, lawns, perennials, shrubs (1)
      - SB442.5 Care and preparation of cut flowers and ornamental plants for market (1)
      - SB442.8 Marketing. Cut flower industry. Florists (1)
      - SB446 Horticultural service industry (1)
      - SB447 Preservation and reproduction of flowers, fruits, etc. (1)
    - SB450 Gardens and gardening (6)
    - SB599 Pests and diseases (25)
      - SB608 Individual or types of plants or trees (2)
      - SB610 Weeds, parasitic plants, etc. (2)
      - SB621 Plant pathology (2)
      - SB950 Pest control and treatment of diseases. Plant protection (19)
        SB974 Organic plant protection. Biological control (15)
    - SB992 Economic zoology applied to crops. Agricultural zoology (3)
  - SD Forestry (31)
    - SD11 Documents (1)
    - SD131 History of forestry. Forest conditions (5)
    - SD250 Forestry education (1)
    - SD388.5 Tools and implements (1)
    - SD389 Forest roads (3)
    - SD390 Forest soils (1)
    - SD390.5 Forest meteorology. Forest microclimatology (2)
    - SD411 Conservation and protection (16)
  - SF Animal culture (60)
    - SF101 Brands and branding, and other means of identifying (5)
    - SF111 Cost, yield, and profit. Accounting (19)
    - SF191 Cattle (2)
    - SF277 Horses (3)
      - SF294.2 Horse sports. Horse shows (2)
    - SF371 Sheep. Wool (1)
    - SF405.5 Laboratory animals (1)
    - SF408 Zoo animals (3)
    - SF409 Small animal culture (3)
    - SF411 Pets (4)
      - SF456 Fishes. Aquariums (3)
      - SF459 Other animals (1)
    - SF461 Birds. Cage birds (1)
    - SF518 Insect rearing (1)
    - SF600 Veterinary medicine (7)
      - SF780.2 Veterinary microbiology, bacteriology, virology, mycology (6)
      - SF910 Other diseases and conditions (1)
    - SF84 Economic zoology (1)
    - SF89 Transportation (1)
    - SF94.5 Feeds and feeding. Animal nutrition (3)
  - SH Aquaculture. Fisheries. Angling (30)
    - SH20.3 Aquaculture (10)
      - SH151 Fish culture (8)
    - SH201 Fisheries (10)
      - SH334 Economic aspects. Finance (8)
      - SH337 Packing, transportation, and storage (1)
      - SH388.7 Algae culture (1)
  - SK Hunting sports (6)
    - SK281 Special methods and types of hunting Including bolos, game calling, tracking, trapping, dressing (1)
    - SK341 Other game (3)
    - SK40 By country (1)
- T Technology (4872)
  - T Technology (General) (973)
    - T201 Patents. Trademarks (5)
    - T173.2 Technological change (25)
    - T175 Industrial research. Research and development (2)
    - T351 Mechanical drawing. Engineering graphics (37)
    - T55 Industrial safety. Industrial accident prevention (15)
    - T57 Applied mathematics. Quantitative methods (8)
      - T57.6 Operations research. Systems analysis (6)
    - T58.5 Information technology (250)
    - T58.6 Management information systems (54)
    - T61 Technical education. Technical schools (24)
  - TA Engineering (General). Civil engineering (General) (387)
    - TA1001 Transportation engineering (17)
    - TA164 Bioengineering (1)
    - TA165 Engineering instruments, meters, etc. Industrial instrumentation (3)
    - TA168 Systems engineering (2)
    - TA170 Environmental engineering (3)
    - TA174 Engineering design (11)
    - TA177.4 Engineering economy (23)
    - TA190 Management of engineering works (3)
    - TA213 Engineering machinery, tools, and implements (14)
    - TA329 Engineering mathematics. Engineering analysis (5)
    - TA349 Mechanics of engineering. Applied mechanics (10)
    - TA401 Materials of engineering and construction. Mechanics of materials (63)
    - TA501 Surveying (2)
    - TA630 Structural engineering (General) (37)
    - TA703 Engineering geology. Rock mechanics. Soil mechanics. Underground construction (11)
    - TA715 Earthwork. Foundations (3)
    - TA800 Tunneling. Tunnels (2)
  - TC Hydraulic engineering. Ocean engineering (22)
    - TC401 River, lake, and water-supply engineering (General) (9)
    - TC530 River protective works. Regulation. Flood control (3)
    - TC601 Canals and inland navigation. Waterways (1)
    - TC801 Irrigation engineering. Reclamation of wasteland. Drainage (1)
  - TD Environmental technology. Sanitary engineering (114)
    - TD1020 Hazardous substances and their disposal (8)
    - TD169 Environmental protection (4)
    - TD172 Environmental pollution (27)
    - TD194 Environmental effects of industries and plants (6)
    - TD201 Water supply for domestic and industrial purposes (13)
      - TD419 Water pollution (3)
      - TD429.5 Water purification. Water treatment and conditioning. Saline water conversion (3)
    - TD511 Sewage collection and disposal systems. Sewerage (1)
    - TD783 Municipal refuse. Solid wastes (9)
    - TD813 Street cleaning. Litter and its removal (1)
    - TD878 Special types of environment Including soil pollution, air pollution, noise pollution (12)
    - TD895 Industrial and factory sanitation (22)
      - TD896 Industrial and factory wastes (18)
    - TD920 Rural and farm sanitary engineering (3)
  - TF Railroad engineering and operation (22)
  - TG Bridge engineering (21)
  - TH Building construction (697)
    - TH1000 Systems of building construction Including fireproof construction, concrete construction (63)
    - TH3301 Maintenance and repair (25)
    - TH6014 Environmental engineering of buildings. Sanitary engineering of buildings (20)
    - TH6101 Plumbing and pipefitting (21)
    - TH7005 Heating and ventilation. Air conditioning (2)
    - TH7700 Illumination. Lighting (5)
    - TH8001 Decoration and decorative furnishings (9)
    - TH845 Architectural engineering. Structural engineering of buildings (68)
    - TH900 Construction equipment in building (101)
  - TJ Mechanical engineering and machinery (684)
    - TJ1040 Machinery exclusive of prime movers (2)
    - TJ1125 Machine shops and machine shop practice (12)
    - TJ1350 Hoisting and conveying machinery (1)
    - TJ1425 Lifting and pressing machinery (3)
    - TJ1480 Agricultural machinery. Farm machinery (78)
    - TJ1501 Sewing machines (10)
    - TJ163.13 Power resources (2)
    - TJ163.26 Energy conservation (1)
    - TJ170 Mechanics applied to machinery. Dynamics (117)
    - TJ181 Mechanical movements (32)
    - TJ210.2 Mechanical devices and figures. Automata. Ingenious mechanisms. Robots (General) (9)
    - TJ212 Control engineering systems. Automatic machinery (General) (14)
    - TJ227 Machine design and drawing (4)
    - TJ241 Machine construction (General) (56)
    - TJ255 Heat engines (3)
    - TJ266 Turbines. Turbomachines (General (1)
    - TJ268 Steam engineering (17)
      - TJ603 Locomotives (10)
    - TJ751 Miscellaneous motors and engines Including gas, gasoline, diesel engines (4)
    - TJ807 Renewable energy sources (3)
    - TJ836 Hydraulic machinery (8)
    - TJ940 Vacuum technology (1)
  - TK Electrical engineering. Electronics Nuclear engineering (691)
    - TK1001 Production of electric energy or power. Powerplants. Central stations (59)
    - TK2000 Dynamoelectric machinery and auxiliaries Including generators, motors, transformers (23)
    - TK2896 Production of electricity by direct energy conversion (44)
    - TK3001 Distribution or transmission of electric power (47)
    - TK301 Electric meters (21)
    - TK4001 Applications of electric power (29)
    - TK4125 Electric lighting (39)
    - TK452 Electric apparatus and materials. Electric circuits. Electric networks (61)
    - TK4601 Electric heating (4)
    - TK5101 Telecommunication Including telegraphy, telephone, radio, radar, television (11)
    - TK7800 Electronics (122)
      - TK7885 Computer engineering. Computer hardware (68)
      - TK8300 Photoelectronic devices (General) (3)
    - TK9900 Electricity for amateurs. Amateur constructors' manuals (8)
  - TL Motor vehicles. Aeronautics. Astronautics (209)
    - TL1 Motor vehicles. Cycles (92)
    - TL500 Aeronautics. Aeronautical engineering (3)
  - TN Mining engineering. Metallurgy (3)
  - TP Chemical technology (95)
    - TP1080 Polymers and polymer manufacture (7)
    - TP155 Chemical engineering (6)
    - TP248 Biotechnology (19)
    - TP315 Fuel (12)
    - TP670 Oils, fats, and waxes (20)
      - TP690 Petroleum refining. Petroleum products (2)
    - TP890 Textile bleaching, dyeing, printing, etc. (6)
  - TR Photography (19)
  - TS Manufactures (83)
    - TS1300 Textile industries (20)
    - TS155 Production management. Operations management (30)
    - TS1950 Animal products (2)
    - TS200 Metal manufactures. Metalworking (6)
    - TS2284 Animal feeds and feed mills. Pet food industry (2)
    - TS800 Wood technology. Lumber (3)
      - TS840 Wood products. Furniture (2)
  - TT Handicrafts Arts and crafts (693)
    - TT490 Clothing manufacture. Dressmaking. Tailoring (256)
    - TT697 Home arts. Homecrafts (52)
    - TT950 Hairdressing. Beauty culture. Barbers' work (250)
  - TX Home economics (757)
    - TX341 Nutrition. Foods and food supply (509)
    - TX642 Cooking (309)
    - TX901 Hospitality industry. Hotels, clubs, restaurants, etc. Food service (75)
  - TE Highway engineering. Roads and pavements (27)
    - TE175 Highway design. Interchanges and intersections (5)
    - TE177 Roadside development. Landscaping (2)
    - TE200 Materials for roadmaking (3)
    - TE210 Construction details Including foundations, maintenance, equipment (11)
    - TE250 Pavements and paved roads (1)
    - TE279 Streets (2)
- U Military Science (4)
  - U Military Science (General) (4)
- V Naval Science (2)
  - V Naval Science (General) (1)
  - VM Naval architecture. Shipbuilding. Marine engineering (1)
- Z Bibliography. Library Science. Information Resources (860)
  - Z004 Books. Writing. Paleography (725)
    - Z40 Writing (643)
  - Z665 Library Science. Information Science (14)
  - Z719 Libraries (General) (15)
  - ZA Information resources (59)
    - ZA4050 Electronic information resources (29)
    - ZA4450 Databases (1)
    - ZA3150 Information services. Information centers (3)
    - ZA4150 Computer network resources (11)
    - ZA4550 Motion pictures. Video recordings (2)
    - ZA4650 Pictures. Photographs (2)
    - ZA5049 Government information (1)
  - Z1003 Choice of books. Books and reading. Book reviews (62)
  - Z116 Book industries and trade (6)
    - Z116.A5 Printing (1)
      - Z237 Paper. Watermarks, etc. (1)