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Library of Congress Subject Areas (5733)
- A General Works (44)
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- B Philosophy. Psychology. Religion (1510)
  - B Philosophy (General) (88)
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- C Auxiliary Sciences of History (7)
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- E History America (52)
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- G Geography. Anthropology. Recreation (619)
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- L Education (863)
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- M Music and Books on Music (285)
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  - MT Musical instruction and study (30)
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- N Fine Arts (433)
  - N Visual arts (General) For photography, see TR (246)
    - N0061-72 Theory. Philosophy. Aesthetics of the visual arts (18)
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- P Language and Literature (818)
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- Q Science (466)
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- R Medicine (538)
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