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Library of Congress Subject Areas (733)
- B Philosophy. Psychology. Religion (163)
  - B Philosophy (General) (14)
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- D History General and Old World (5)
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    - HD28 Management. Industrial Management (4)
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- M Music and Books on Music (4)
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  - TR Photography (47)
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- V Naval Science (1)
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- Z Bibliography. Library Science. Information Resources (22)
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