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Library of Congress Subject Areas (5652)
- A General Works (173)
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  - AM Museums (General). Collectors and collecting (General) (2)
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- B Philosophy. Psychology. Religion (119)
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- C Auxiliary Sciences of History (9)
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- K Law (17)
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- L Education (872)
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- M Music and Books on Music (7)
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- N Fine Arts (1)
  - N Visual arts (General) For photography, see TR (1)
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- Q Science (513)
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- R Medicine (4647)
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- S Agriculture (25)
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- Z Bibliography. Library Science. Information Resources (164)
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    - ZA4050 Electronic information resources (3)
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