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Library of Congress Subject Areas (17345)
- A General Works (7)
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- B Philosophy. Psychology. Religion (29)
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- C Auxiliary Sciences of History (14)
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- D History General and Old World (10)
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- E History America (1)
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- G Geography. Anthropology. Recreation (85)
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- H Social Sciences (3084)
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- J Political Science (254)
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- N Fine Arts (53)
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- Q Science (2431)
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- R Medicine (4343)
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- S Agriculture (2545)
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- T Technology (1849)
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- U Military Science (2)
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- V Naval Science (223)
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- Z Bibliography. Library Science. Information Resources (3)
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