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Library of Congress Subject Areas (76)
- A General Works (28)
  - AC Collections. Series. Collected works (28)
  - AI Indexes (General) (49)
  - AM Museums (General). Collectors and collecting (General) (3)
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- B Philosophy. Psychology. Religion (1)
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    - BV1460 Religious Education (6)
- C Auxiliary Sciences of History (7)
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- D History General and Old World (8)
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- E History America (6)
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- F History United States, Canada, Latin America (2)
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- G Geography. Anthropology. Recreation (11)
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- H Social Sciences (76)
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- L Education (34)
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  - LD Individual institutions (United States) (2)
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- M Music and Books on Music (11)
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- N Fine Arts (3)
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- Q Science (454)
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- R Medicine (5)
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  - RM Therapeutics. Pharmacology (28)
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  - RZ Other systems of medicine (31)
- S Agriculture (66)
  - S Agriculture (General) (224)
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  - SH Aquaculture. Fisheries. Angling (28)
- T Technology (633)
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- U Military Science (22)
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- V Naval Science (1)
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- Z Bibliography. Library Science. Information Resources (10)
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    - ZA4050 Electronic information resources (12)
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