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Library of Congress Subject Areas (41055)
- A General Works (13)
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- B Philosophy. Psychology. Religion (69)
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- C Auxiliary Sciences of History (69)
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- D History General and Old World (42)
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- E History America (6)
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- G Geography. Anthropology. Recreation (116)
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- H Social Sciences (7043)
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- J Political Science (589)
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- L Education (418)
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- M Music and Books on Music (1)
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- N Fine Arts (78)
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- Q Science (5246)
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- R Medicine (9400)
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- S Agriculture (7067)
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- T Technology (4354)
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- U Military Science (2)
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- V Naval Science (449)
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  - VM Naval architecture. Shipbuilding. Marine engineering (285)
- Z Bibliography. Library Science. Information Resources (3)
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