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Library of Congress Subject Areas (5363)
- A General Works (40)
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- B Philosophy. Psychology. Religion (1451)
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- C Auxiliary Sciences of History (5)
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- E History America (49)
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- G Geography. Anthropology. Recreation (589)
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- H Social Sciences (860)
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- M Music and Books on Music (283)
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- N Fine Arts (405)
  - N Visual arts (General) For photography, see TR (238)
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- P Language and Literature (785)
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- Q Science (425)
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- R Medicine (486)
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