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Library of Congress Subject Areas (6031)
- A General Works (2)
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  - AM Museums (General). Collectors and collecting (General) (1)
- B Philosophy. Psychology. Religion (625)
  - B Philosophy (General) (100)
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- C Auxiliary Sciences of History (15)
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- D History General and Old World (344)
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- E History America (38)
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- F History United States, Canada, Latin America (22)
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- G Geography. Anthropology. Recreation (112)
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- H Social Sciences (2399)
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- J Political Science (498)
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- M Music and Books on Music (8)
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- N Fine Arts (74)
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- Q Science (1229)
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- R Medicine (343)
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- S Agriculture (21)
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- T Technology (158)
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- U Military Science (18)
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- Z Bibliography. Library Science. Information Resources (15)
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  - ZA Information resources (11)
    - ZA4050 Electronic information resources (11)