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Library of Congress Subject Areas (113958)
- A General Works (603)
  - AG Dictionaries and other general reference works (26)
    - AG2-600 Dictionaries and other general reference works (25)
  - AC Collections. Series. Collected works (28)
    - AC1-8 American and English (2)
    - AC1-999 Collections. Series. Collected works (2)
    - AC801-895 Inaugural and program dissertations (11)
    - AC9-195 Other languages (11)
  - AE Encyclopedias (3)
    - AE1-(90) Encyclopedias (3)
  - AI Indexes (General) (8)
    - AI1-21 Indexes (8)
  - AM Museums (General). Collectors and collecting (General) (24)
    - AM1-(501) Museums. Collectors and collecting (7)
    - AM10-100 By country (5)
    - AM111-160 Museology. Museum methods, technique, etc. (6)
    - AM200-(501) Collectors and collecting (2)
  - AN Newspapers (42)
  - AP Periodicals (4)
    - AP1-(271) Periodicals (2)
      - AP101-115 Humorous periodicals (1)
      - AP200-230 Juvenile periodicals (1)
  - AS Academies and learned societies (General) (33)
    - AS1-945 Academies and learned societies (10)
    - AS2.5-4 International associations, congresses, conferences, etc. (14)
  - AY Yearbooks. Almanacs. Directories (156)
    - AY10-2001 Yearbooks. Almanacs. Directories (134)
      - AY10-29 Annuals (1)
      - AY2001 Directories (95)
  - AZ History of Scholarship The Humanities (178)
    - AZ(20)-999 History of scholarship and learning. The humanities (1)
    - AZ101-(181) Philosophy. Theory (1)
    - AZ191-193 Evaluation (108)
    - AZ200-361 History (63)
    - AZ501-908 By region or country (4)
- B Philosophy. Psychology. Religion (4802)
  - B Philosophy (General) (16)
    - B1-5802 Philosophy (General) (3)
    - B790-5739 Modern (1)
    - B803 Philosophy Modern (1)
  - BC Logic (25)
    - BC1-199 Logic (1)
    - BC11-39 History (24)
  - BD Speculative Philosophy (38)
    - BD10-701 Speculative Philosophy (1)
    - BD143-236 Epistemology, Theory of Knowledge (27)
    - BD300-450 Ontology (including the soul, life, death) (9)
    - BD493-701 Cosmology (including teleology, space and time, structure of matter, plurality of worlds) (2)
  - BF Psychology (3697)
    - BF1-1999 Psychology, Parapsychology, Occult Sciences. (80)
    - BF1-940 Psychology (1006)
    - BF1001-1389 Parapsychology (3)
    - BF1048-1108 Hallucinations, Sleep, Dreaming, Visions (17)
    - BF1111-1156 Hypnotism, Suggestion, Mesmerism, Subliminal Projection (12)
    - BF1161-1171 Telepathy, Mind Reading, Thought Transference (3)
    - BF1228-1389 Spiritualism (including mediumship, spirit messages, clairvoyance) (20)
    - BF1501-1562 Demonology, Satanism, Possession (3)
    - BF1585-1623 Magic, Hermetics, Necromany (4)
    - BF173-175 Psychoanalysis (72)
    - BF176 Psychological Tests and Testing (72)
    - BF1783-1815 Seers, Prophets, Prophecies (2)
    - BF180-205 Experimental Psychology (95)
    - BF1845-1891 Fortune-Telling (2)
    - BF207-209 Psychotropic Drugs (76)
    - BF231-299 Sensation, Aesthiology (1)
    - BF309-499 Consciousness, Cognition, Perception, Intuition (117)
    - BF38-64 Philosophy. Relation to other topics, (10)
    - BF501-504.3 Motivation (509)
    - BF511-593 Emotion, Feeling, Affection (507)
    - BF608-635 Will, Choice, Volition (19)
    - BF636-637 Applied Psychology (99)
    - BF660-685 Comparative Psychology (19)
    - BF698-698.9 Personality (304)
    - BF699-711 Genetic Psychology (18)
    - BF712-724.85 Developmental Psychology (123)
    - BF721-723 Child Psychology (272)
    - BF795-839.5 Temperament, Character (Ethology) (62)
    - BF889-905 Graphology (1)
  - BH Aesthetics (3)
    - BH1-301 Aesthetics (2)
  - BJ Ethics (195)
    - BJ1-2195 Ethics. Social Usages. Etiquette (12)
    - BJ1188-1295 Religious Ethics (12)
    - BJ1518-1697 Individual Ethics, Character, Virtue (including practical and applied ethics, conduct of life, success) (66)
    - BJ1725 Ethics of Social Groups, Classes, etc., Professional Ethics (84)
    - BJ1801-2195 Social Usages, Etiquette (5)
    - BJ71-1185 History and Systems (including individual ethical philosophers) (13)
  - BL Religion (334)
    - BL1-2790 Religions, Mythology, Rationalism (17)
    - BL1-50 Religion (General) (62)
    - BL1000-2370 Asian, Oriental (1)
    - BL1050-1060 By Region (2)
    - BL1100-1295 Hinduism (2)
    - BL1108.2-1108.7 Religious Education (23)
    - BL1141.2-1142.6 Tantric Texts (1)
    - BL1145-1146 Hindu Literature (1)
    - BL1150-1168 By Religion or Country (1)
    - BL1212.32-1212.56 Doctrines, Theology (1)
    - BL1216-1225 Hindu Pantheon, Deities (2)
    - BL1225.2-1243.58 Religious Life (12)
    - BL1243.72-1243.78 Monasteries, Temples, etc (1)
    - BL1379-1380 Modifications, etc. (1)
    - BL1600-1695 Semitic (1)
    - BL175-290 Natural Theology (1)
    - BL1800-1975 China (3)
    - BL205-215 Nature and Attributes of Deity (2)
    - BL218 Dualism (2)
    - BL2200-2228 Japan (11)
    - BL2230-2240 Korea (1)
    - BL224-226 Creation, Theory of the Earth (1)
    - BL239-265 Religion and Science (4)
    - BL270 Unity and Plurality (2)
    - BL300-325 The Myth, Comparative Mythology (16)
    - BL350-385 Classification of Religions (6)
    - BL410 Religions in Relation to One Another (8)
    - BL430 Origins of Religion (1)
    - BL458 Women in Comparative Religion (21)
    - BL460 Sex Worship, Phallicism (6)
    - BL465-470 Worship of Human Beings (2)
    - BL500-619 Worship, Cults (1)
    - BL51-65 Religion in Relation to Special Subjects (26)
    - BL624-627 Religious Life (22)
    - BL630-632.5 Religious Organization (41)
    - BL660-2670 History and Principles of Religions (9)
    - BL70-71 Sacred Books (General) (1)
    - BL71.5-72 Biography (7)
    - BL900-980 Other European (1)
  - BP Islam. Bahaism. Theosophy, etc (470)
    - BP1-253 Islam (208)
    - BP1-610 Islam. Bahai Faith. Theosophy, etc. (4)
    - BP135-136.9 Hadith literature. Traditions. Sunna (16)
    - BP174-190 The practice of Islam (244)
  - BQ Buddhism (1)
  - BR Christianity (4)
  - BT Doctrinal Theology (1)
  - BV Practical Theology (13)
    - BV1460 Religious Education (13)
  - BX Christian Denominations (2)
- C Auxiliary Sciences of History (98)
  - C Auxiliary sciences of history (General) (8)
  - CB History of civilization (38)
  - CD Diplomatics. Archives. Seals (35)
    - CD921 Archives (34)
  - CS Genealogy (2)
  - CT Biography (7)
- D History General and Old World (292)
  - D History (General) (166)
    - D051 Ancient History (6)
    - D204 Modern History (1)
    - D731 World War II (1)
    - D839 Post-war History, 1945 on (8)
    - D880 Developing Countries (42)
    - D901 Europe (General) (4)
  - DA Great Britain (1)
  - DJ Netherlands (Holland) (1)
    - DJK Eastern Europe (1)
  - DL Northern Europe. Scandinavia (1)
  - DP Spain (2)
  - DS Asia (131)
    - DS1-937 History of Asia (34)
    - DS35.3-35.77 The Islamic World (17)
    - DS41-66 Middle East. Southwestern Asia. Ancient Orient. Arab East. Near East (7)
    - DS501-518.9 East Asia. The Far East (3)
    - DS520-560.72 Southeast Asia (8)
    - DS591-599 Malaysia. Malay Peninsula. Straits Settlements (1)
    - DS633-644.46 History (50)
    - DS701-799.9 China (10)
  - DT Africa (3)
  - DU Oceania (South Seas) (1)
- E History America (7)
  - E11 America (General) (3)
  - E151 United States (General) (2)
- F History United States, Canada, Latin America (1)
  - F1201 Latin America (General) (1)
- G Geography. Anthropology. Recreation (1227)
  - G Geography (General) (454)
    - G1-922 Geography (General) (5)
    - G154.9-155.8 Travel and state. Tourism (425)
    - G2200-2444.84 Asia (7)
    - G70-70.6 Philosophy. Relation to other topics. Methodology (2)
    - G70.212 Geographic information systems (18)
  - GA Mathematical geography. Cartography (5)
  - GB Physical geography (4)
    - GB3-5030 Physical geography (3)
    - GB401.5 Geomorphology and Hydrology (1)
  - GC Oceanography (1)
    - GC205-227 Waves (1)
  - GE Environmental Sciences (219)
    - GE300-350 Environmental management (211)
  - GF Human ecology. Anthropogeography (47)
    - GF1-900 Human ecology. Anthropogeography (13)
    - GF125 Cities. Urban geography (24)
    - GF41 Human geography (4)
  - GN Anthropology (387)
    - GN451-477.7 Intellectual life Including communication, recreation, philosophy, religion, knowledge, etc. (205)
    - GN700-890 Prehistoric archaeology (3)
  - GR Folklore (15)
  - GT Manners and customs (49)
    - GT5220-5286 Customs relative to transportation and travel (33)
  - GV Recreation Leisure (44)
    - GV1100-1150.9 Fighting sports: Bullfighting, boxing, fencing, etc (19)
- H Social Sciences (35557)
  - H Social Sciences (General) (652)
    - H1-99 Social sciences (General) (341)
    - H61-97 Policy sciences (141)
  - HA Statistics (86)
    - HA1-4737 Statistics (74)
  - HB Economic Theory (1827)
    - HB1-3840 Economic theory. Demography (469)
    - HB135-147 Mathematical economics. Quantitative methods (33)
    - HB172.5 - Macroeconomics (138)
    - HB1951 Population geography (30)
    - HB522-715 Income. Factor shares (246)
    - HB615-715 Entrepreneurship (139)
    - HB848-3697 Demography. Population. Vital events (86)
  - HC Economic History and Conditions (780)
    - HC10-1085 Economic history and conditions (350)
    - HC79 Special topics-Including air pollution, automation,consumer demand, famines, flow of funds,etc. (230)
    - HC94-1085 By region or country (48)
  - HD Industries. Land use. Labor (7767)
    - HD101-1395.5 Land use Land tenure (748)
    - HD2340.8-2346.5 Small and medium-sized businesses, artisans,handicrafts, trades (147)
    - HD2709-2930.7 Corporations (366)
    - HD28-70 Management. Industrial Management (1475)
    - HD30.28 Strategic planning (713)
    - HD3611-4730.9 Industrial policy. The state and industrial organization Including licensing of occupations and professions, subsidies, inspection, government ownership, municipal services (451)
    - HD5701-6000.9 Labor market. Labor supply. Labor demand (391)
    - HD58 Industrialization (93)
    - HD58.7-58.95 Organizational behavior, change and effectiveness. Corporate culture (1219)
    - HD59-59.6 Public relations. Industrial publicity (138)
    - HD61 Risk Management (538)
    - HD62.2-62.8 Management of special enterprises (190)
    - HD6350-6940.7 Trade unions. Labor unions. Workers' associations (157)
    - HD69 Other (5)
    - HD6958.5-6976 Industrial relations (82)
    - HD6977-7080 Cost and standard of living (338)
    - HD7260-7780.8 Industrial hygiene. Industrial welfare (70)
    - HD7795-8027 Labor policy. Labor and the state (164)
    - HD8039 By industry or trade (221)
    - HD9680-9714 Mechanical industries Including electric utilities, electronic industries, and machinery (28)
    - HD9720-9975 Manufacturing industries (303)
    - HD9980.5 Service industries (263)
  - HE Transportation and Communications (327)
    - HE1-9990 Transportation and communications (145)
    - HE323-328 Transportation geography. Trade routes (25)
    - HE5601-5725 Automotive transportation Including trucking, bus lines, and taxicab service (60)
  - HF Commerce (8606)
    - HF1-6182 Commerce (241)
    - HF1021-1027 Commercial geography. Economic geography (69)
    - HF5001-6182 Business (437)
    - HF5410-5417.5 Marketing. Distribution of products (1419)
    - HF5428-5429.6 Retail trade (65)
    - HF5437-5444 Purchasing. Selling. Sales personnel. Sales executives (360)
    - HF5546-5548.6 Office management (760)
    - HF5548.8 Psychology, Industrial (236)
    - HF5549-5549.5 Personnel management. Employment (2268)
    - HF5601 Accounting (2841)
    - HF5691-5716 Business mathematics. Commercial arithmetic Including tables, etc. (16)
    - HF5801-6182 Advertising (363)
  - HG Finance (7897)
    - HG1-9999 Finance (4090)
      - HG1501-3550 Banking (2319)
        HG1621-1638 Interest rates. Interest tables (76)
        HG1641-1643 Bank loans. Bank credit. Commercial loans (433)
        HG1651-1654 Discount (1)
        HG1655 Acceptances (4)
        HG1656 Bank reserves. Bank liquidity. Loan loss reserves (64)
        HG1660 Bank accounts. Bank deposits. Deposit banking (137)
        HG1662 Insurance of deposits. Deposit insurance (24)
        HG1685-1704 Drafts. Checks (2)
        HG1706-1708 Accounting. Bookkeeping (153)
        HG1709 Data processing (15)
        HG1710-1710.5 Electronic funds transfers (26)
        HG1722 Bank mergers (35)
        HG1723 Bank stocks. Banking as an investment (184)
        HG1725-1778 Banks and the state. State supervision of banks (29)
        HG1811-2351 Special classes of banks and financial institutions (312)
        HG2397-3550 By region or country (2)
      - HG178 Liquidity (84)
      - HG179 Personal finance (58)
      - HG201-1496 Money (145)
        HG258-312 Precious metals. Bullion (2)
        HG315 Small coins (1)
        HG335-339 Counterfeiting (2)
        HG348-353.5 Paper money (17)
        HG361-363 Legal tender (32)
        HG381-395 International coinage (8)
        HG451-1496 By region or country (2)
      - HG3691-3769 Credit. Debt. Loans (523)
      - HG6105-6270.9 Lotteries (1)
      - HG8011-9999 Insurance (526)
        HG8053.5-8054.45 Insurance for professions. Malpractice insurance. Professional liability insurance (23)
        HG8059 Business insurance (27)
        HG8075-8107 Insurance business. Insurance management (50)
        HG8111-8123 Government policy. State supervision (94)
        HG8205-8220 Government insurance (7)
        HG8751-9295 Life insurance (153)
        HG8779-8793 Actuarial science. Statistical theory and methodology applied to insurance (2)
        HG8799-8830 By class insured, by risk, by plan (21)
        HG8835-8899 Life insurance business. Management (22)
        HG8901-8914 Government policy. State supervision (49)
        HG9201-9245 Mutual life insurance. Assessment life insurance. Fraternal life insurance (14)
        HG9251-9262 Industrial life insurance (6)
        HG9271 Child insurance. Life insurance for children (5)
        HG9291-9295 Maternity insurance (2)
        HG9301-9343 Accident insurance (16)
        HG9371-9399 Health insurance (81)
        HG9651-9899 Fire insurance (19)
        HG9969.5-9999 Other insurance (2)
    - HG3810-4000 Foreign exchange. International finance. International monetary system (270)
    - HG4001-4285 Finance management. Business finance.Corporation finance (1184)
    - HG4301-4480.9 Trust services. Trust companies (190)
    - HG4501-6051 Investment, capital formation, speculation (2254)
      - HG4530 Investment companies. Investment trusts. Mutual funds (215)
      - HG4538 Foreign investments (114)
      - HG4551-4598 Stock exchanges (1321)
      - HG4621 Stockbrokers. Security dealers. Investment adviser (11)
      - HG4701-4751 Government securities. Industrial securities. Venture capital (149)
      - HG4900-5993 By region or country (12)
      - HG6001-6051 Speculation (4)
  - HJ Public Finance (4058)
    - HJ9-9940 Public finance (3938)
      - HJ2005-2216 Income and expenditure. Budget (392)
      - HJ210-240 History (1)
      - HJ2240-5908 Revenue. Taxation. Internal revenue (1754)
        HJ2321-2323 Tax incidence. Tax shifting. Tax equity (212)
        HJ2326-2327 Progressive taxation (23)
        HJ2336-2337 Tax exemption (24)
        HJ2338 Taxation of government property (36)
        HJ2351 Inflation and taxation (179)
        HJ2351.4 Tax revenue estimating (60)
        HJ2361-3192.7 By region or country (4)
        HJ3801-3844 Revenue from sources other than taxation (3)
        HJ3863-3925 Direct taxation (14)
        HJ4113-4601 Property tax (96)
        HJ4629-4830 Income tax (528)
        HJ4919-4936 Capitation. Poll tax (77)
        HJ5309-5510 Administrative fees. User charges. License fees (47)
      - HJ241-1620 By region or country (20)
      - HJ6603-7390 Customs administration (101)
      - HJ7461-7980 Expenditures. Government spending (61)
      - HJ8001-8899 Public debts (23)
        HJ8052 Sinking funds. Amortization (1)
      - HJ9-99.8 Periodicals. Serials. By region or country (2)
      - HJ9103-9695 Local finance. Municipal finance (258)
      - HJ9701-9940 Public accounting. Auditing (1399)
  - HM Sociology (2397)
    - HM(1)-1281 Sociology (2115)
      - HM1001-1281 Social psychology (650)
        HM1041-1101 Social perception. Social cognition Including perception of the self and others, prejudices, stereotype (243)
        HM1106-1171 Interpersonal relations. Social behavior (250)
        HM1176-1281 Social influence. Social pressure (53)
      - HM435-477 History of sociology. History of sociological theory (20)
        HM461-473 Schools of sociology. Schools of social thought (11)
      - HM481-554 Theory. Method. Relations to other subjects (31)
      - HM621-656 Culture (478)
      - HM661-696 Social control (95)
      - HM701 Social systems (50)
      - HM706 Social structure (49)
      - HM711-806 Groups and organizations (434)
        HM756-781 Community (289)
        HM786-806 Organizational sociology. Organization theory (87)
      - HM811-821 Deviant behavior. Social deviance (117)
      - HM826 Social institutions (27)
      - HM831-901 Social change (158)
  - HN Social history and conditions. Social problems. Social reform (591)
    - HN1-995 Social history and conditions. Social problems. Social reform (285)
    - HN30-39 The church and social problems (12)
    - HN41-46 Community centers. Social centers (142)
    - HN50-995 By region or country (20)
  - HQ The family. Marriage. Woman (1940)
    - HQ1-2044 The Family. Marriage. Women (1804)
      - HQ1073-1073.5 Thanatology. Death. Dying (10)
      - HQ1075-1075.5 Sex role (23)
      - HQ1088-1090.7 Men (9)
      - HQ1101-2030.7 Women. Feminism (155)
        HQ1871-2030.7 Women's clubs (14)
      - HQ12-449 Sexual life (305)
        HQ101-440.7 Prostitution (28)
        HQ19-30.7 Sexual behavior and attitudes. Sexuality (133)
        HQ31-64 Sex instruction and sexual ethics (38)
        HQ71-72 Sexual deviations (14)
        HQ75-76.8 Homosexuality. Lesbianism (26)
        HQ77.7-77.95 Transexualism (2)
        HQ79 Sadism. Masochism. Fetishism, etc. (1)
      - HQ2035-2039 Life skills. Coping skills. Everyday living skills (17)
      - HQ2042-2044 Life style (116)
      - HQ503-1064 The family. Marriage. Home (1125)
        HQ1001-1006 The state and marriage (31)
        HQ1051-1057 The church and marriage (1)
        HQ1058-1058.5 Widows and widowers. Widowhood (5)
        HQ1060-1064 Aged. Gerontology (Social aspects). Retirement (126)
        HQ755.7-759.92 Parents. Parenthood (183)
        HQ760-767.7 Family size (47)
        HQ767.8-792.2 Children. Child development (114)
        HQ793-799.2 Youth. Adolescents. Teenagers (279)
        HQ799.5-799.9 Young men and women (46)
        HQ799.95-799.97 Adulthood (12)
        HQ800-800.4 Single people (6)
        HQ801-801.83 Man-woman relationships. Courtship. Dating (34)
        HQ802 Matrimonial bureaus. Marriage brokerage (7)
        HQ802.5 Matrimonial advertisements (12)
        HQ803 Temporary marriage. Trial marriage. Companionate marriage (14)
        HQ804 Breach of promise (1)
        HQ806 Adultery (3)
        HQ811-960.7 Divorce (75)
        HQ981-996 Polygamy (11)
  - HS Societies secret benevolent etc (235)
    - HS1-3371 Societies: secret, benevolent, etc. (229)
      - HS1355 Other societies (11)
      - HS1501-2460.7 Other societies. By classes (214)
        Benevolent and "friendly" societies and mutual assessment fraternities (10)
        HS1525-1560 Religious societies (17)
        HS1601-2265 Race societies (5)
        HS2275 Occupation societies (6)
        HS2301-2460.7 Political and "patriotic" societies (177)
      - HS2501-3371 Clubs. Clubs and societies for special classes Including boys' societies, Boy scouts, girls' societies (1)
  - HT Communities. Classes. Races (867)
    - HT51-1595 Communities. Classes. Races (759)
      - HT101-395 Urban groups. The city. Urban sociology (466)
        HT161-165 Garden cities. "The city beautiful" (12)
        HT165.5-169.9 City planning (45)
        HT170-178 Urban renewal. Urban redevelopment (13)
        HT201-221 City population Including children in cities, immigration (16)
        HT231 Effect of city life (16)
        HT251-265 Mental and moral life (20)
        HT281 Recreation. Amusements (10)
        HT321-325 The city as an economic factor. City promotion (63)
        HT330-334 Metropolitan areas (1)
        HT351-352 Suburban cities and towns (7)
        HT361-384 Urbanization. City and country (29)
        HT388 Regional economics. Space in economics (155)
        HT390-395 Regional planning (30)
      - Including race as a social group and race relations in general (32)
      - HT401-485 Rural groups. Rural sociology (106)
      - HT51-65 Human settlements. Communities (93)
      - HT601-1445 Classes (29)
        HT621-635 Origin of social classes (7)
        HT641-657 Classes arising from birth, Including royalty, nobility, commons (11)
        HT675-690 Classes arising from occupation (5)
        HT713-725 Caste system (3)
  - HV Social pathology. Social and public welfare (2621)
    - HV1-9960 Social pathology. Social and public welfare. Criminology (2524)
      - HV40-69 Social service. Social work. Charity organization and practice (308)
      - HV5001-5720.5 Alcoholism. Intemperance. Temperance reform (5)
      - HV530 The church and charity (1)
      - HV541 Women and charity (15)
      - HV544.5 International social work (15)
      - HV547 Self-help groups (10)
      - HV551.2-639 Emergency management (42)
        HV553-639 Relief in case of disasters (30)
        HV560-583 Red Cross. Red Crescent (2)
        HV599-639 Special types of disasters (23)
      - HV5725-5770 Tobacco habit (47)
      - HV5800-5840 Drug habits. Drug abuse (101)
      - HV6001-7220.5 Criminology (271)
        HV6035-6197 Criminal anthropology (94)
        HV6201-6249 Criminal classes (22)
        HV6250-6250.4 Victims of crimes. Victimology (15)
        HV6251-6773.55 Crimes and offenses (17)
        HV6774-7220.5 Crimes and criminal classes (64)
      - HV640-645 Refugee problems (1)
      - HV650-670 Life saving (6)
      - HV675-677 Accidents. Prevention of accidents (102)
      - HV680-696 Free professional services, Including medical charities (14)
      - HV697-4959 Protection, assistance and relief (1216)
        HV3025-3174 Special classes. By occupation (22)
        HV3025-3163 Mariners (1)
        HV3165-3173 Shop women, clerks, etc. (18)
        HV3176-3199 Special classes. By race or ethnic group (147)
        HV4005-4013 Immigrants (7)
        HV4023-4470.7 Poor in cities. Slums (110)
        HV4480-4630 Mendicancy. Vagabondism. Tramps. Homelessness (5)
        HV4701-4890.9 Protection of animals. Animal rights. Animal welfare (17)
        HV4905-4959 Animal experimentation. Anti-vivisection (148)
        HV697-3024 Special classes (752)
        HV1421-1441 Young adults. Youth. Teenagers (104)
        HV1442-1448 Women (358)
        HV1449 Gay men. Lesbians (26)
        HV1450-1494 Aged (50)
        HV1551-3024 People with disabilities (45)
        HV697-700.7 Families. Mothers. Widow's pensions (44)
        HV701-1420.5 Children (130)
        HV873-887 Destitute, neglected, and abandoned children. Street children (21)
        HV888-907 Children with disabilities (25)
        HV931-941 Fresh-air funds (1)
        HV959-1420.5 Orphanages. Orphans (3)
      - HV7231-9960 Criminal justice administration (390)
        HV7428 Social work with delinquents and criminals (2)
        HV7431 Prevention of crime, methods, etc. (12)
        HV7435-7439 Gun control (2)
        HV7551-8280.7 Police. Detectives. Constabulary (285)
        HV7935-8025 Administration and organization (172)
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