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Library of Congress Subject Areas (4739)
- A General Works (29)
  - AC Collections. Series. Collected works (19)
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  - AZ History of Scholarship The Humanities (2)
- B Philosophy. Psychology. Religion (13)
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- C Auxiliary Sciences of History (2)
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- D History General and Old World (18)
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    - D204 Modern History (2)
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- G Geography. Anthropology. Recreation (1)
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- H Social Sciences (1484)
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- J Political Science (135)
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- L Education (51)
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- P Language and Literature (681)
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- Q Science (726)
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- S Agriculture (154)
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- T Technology (1164)
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