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Library of Congress Subject Areas (14265)
- A General Works (69)
  - AC Collections. Series. Collected works (19)
  - AI Indexes (General) (4)
  - AM Museums (General). Collectors and collecting (General) (4)
  - AS Academies and learned societies (General) (37)
  - AZ History of Scholarship The Humanities (9)
- B Philosophy. Psychology. Religion (326)
  - B Philosophy (General) (18)
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    - BV1460 Religious Education (2)
- C Auxiliary Sciences of History (14)
  - C Auxiliary sciences of history (General) (1)
  - CT Biography (13)
- D History General and Old World (103)
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    - D839 Post-war History, 1945 on (1)
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- G Geography. Anthropology. Recreation (838)
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- H Social Sciences (2776)
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  - HQ The family. Marriage. Woman (102)
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  - HT Communities. Classes. Races (38)
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- J Political Science (50)
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- K Law (22)
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- L Education (8047)
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- M Music and Books on Music (194)
  - M Music (82)
  - ML Literature of music (97)
  - MT Musical instruction and study (70)
- N Fine Arts (378)
  - N Visual arts (General) For photography, see TR (91)
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  - NX Arts in general (237)
- P Language and Literature (1297)
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    - PN2000 Dramatic representation. The Theater (7)
  - PQ Romance literatures (30)
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  - PZ Childrens literature (5)
- Q Science (2930)
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  - QA Mathematics (590)
    - QA75 Electronic computers. Computer science (4)
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- R Medicine (119)
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- S Agriculture (61)
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- T Technology (621)
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  - TR Photography (1)
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  - TT Handicrafts Arts and crafts (15)
  - TX Home economics (33)
- Z Bibliography. Library Science. Information Resources (300)
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  - Z665 Library Science. Information Science (183)
  - Z719 Libraries (General) (115)
  - ZA Information resources (31)
    - ZA4050 Electronic information resources (11)
    - ZA4450 Databases (6)