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Library of Congress Subject Areas (3391)
- A General Works (33)
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  - AM Museums (General). Collectors and collecting (General) (6)
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- B Philosophy. Psychology. Religion (114)
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- D History General and Old World (67)
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- E History America (6)
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- G Geography. Anthropology. Recreation (49)
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- L Education (840)
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- M Music and Books on Music (484)
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- N Fine Arts (586)
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- P Language and Literature (175)
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- R Medicine (252)
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- S Agriculture (45)
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- T Technology (401)
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  - TR Photography (229)
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- U Military Science (1)
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- Z Bibliography. Library Science. Information Resources (45)
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