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Library of Congress Subject Areas (7596)
- A General Works (470)
  - AC Collections. Series. Collected works (186)
  - AI Indexes (General) (284)
  - AM Museums (General). Collectors and collecting (General) (4)
  - AS Academies and learned societies (General) (22)
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- B Philosophy. Psychology. Religion (223)
  - B Philosophy (General) (66)
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- C Auxiliary Sciences of History (1)
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- D History General and Old World (1)
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- E History America (1)
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- G Geography. Anthropology. Recreation (5)
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- H Social Sciences (2764)
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- J Political Science (253)
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- K Law (1394)
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- L Education (852)
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- N Fine Arts (11)
  - N Visual arts (General) For photography, see TR (8)
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- P Language and Literature (444)
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- Q Science (293)
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- S Agriculture (241)
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  - SH Aquaculture. Fisheries. Angling (184)
- T Technology (725)
  - T Technology (General) (59)
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  - TR Photography (2)
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- V Naval Science (4)
  - V Naval Science (General) (4)
- Z Bibliography. Library Science. Information Resources (10)
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