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Library of Congress Subject Areas (714)
- B Philosophy. Psychology. Religion (162)
  - B Philosophy (General) (14)
  - BF Psychology (147)
  - BJ Ethics (2)
- D History General and Old World (5)
  - D History (General) (3)
    - D204 Modern History (1)
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- G Geography. Anthropology. Recreation (8)
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- H Social Sciences (81)
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    - HD28 Management. Industrial Management (4)
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- L Education (98)
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  - LC Special aspects of education (8)
- M Music and Books on Music (4)
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  - MT Musical instruction and study (1)
- N Fine Arts (7)
  - N Visual arts (General) For photography, see TR (2)
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- Q Science (111)
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- R Medicine (54)
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    - RC1200 Sports Medicine (7)
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- S Agriculture (2)
  - S Agriculture (General) (2)
- T Technology (242)
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  - TR Photography (47)
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- V Naval Science (1)
  - V Naval Science (General) (1)
- Z Bibliography. Library Science. Information Resources (22)
  - Z665 Library Science. Information Science (7)
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  - ZA Information resources (8)
    - ZA4050 Electronic information resources (6)
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