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Library of Congress Subject Areas (1949)
- A General Works (4)
  - AC Collections. Series. Collected works (1)
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- B Philosophy. Psychology. Religion (7)
  - B Philosophy (General) (6)
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- C Auxiliary Sciences of History (1)
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- D History General and Old World (4)
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- G Geography. Anthropology. Recreation (13)
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- H Social Sciences (266)
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- J Political Science (60)
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- Q Science (506)
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- R Medicine (28)
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- S Agriculture (489)
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- T Technology (562)
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- Z Bibliography. Library Science. Information Resources (126)
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