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Library of Congress Subject Areas (6071)
- A General Works (56)
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- B Philosophy. Psychology. Religion (1543)
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- G Geography. Anthropology. Recreation (673)
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- M Music and Books on Music (294)
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- N Fine Arts (436)
  - N Visual arts (General) For photography, see TR (249)
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- P Language and Literature (881)
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- Q Science (524)
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- R Medicine (542)
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