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Library of Congress Subject Areas (59737)
- A General Works (73)
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  - AM Museums (General). Collectors and collecting (General) (6)
  - AS Academies and learned societies (General) (45)
  - AZ History of Scholarship The Humanities (5)
- B Philosophy. Psychology. Religion (4356)
  - B Philosophy (General) (179)
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    - BV1460 Religious Education (40)
- C Auxiliary Sciences of History (11)
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- D History General and Old World (9)
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- G Geography. Anthropology. Recreation (1366)
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- H Social Sciences (12553)
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- M Music and Books on Music (21)
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- N Fine Arts (660)
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- P Language and Literature (3310)
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- Q Science (3426)
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- R Medicine (8847)
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    - RC1200 Sports Medicine (69)
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  - RM Therapeutics. Pharmacology (1384)
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  - RZ Other systems of medicine (275)
- S Agriculture (89)
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- T Technology (5441)
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  - TA Engineering (General). Civil engineering (General) (1238)
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  - TH Building construction (284)
  - TJ Mechanical engineering and machinery (1112)
  - TK Electrical engineering. Electronics Nuclear engineering (826)
  - TL Motor vehicles. Aeronautics. Astronautics (98)
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  - TP Chemical technology (477)
  - TR Photography (8)
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  - TT Handicrafts Arts and crafts (25)
  - TX Home economics (72)
- U Military Science (3)
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- V Naval Science (15)
  - V Naval Science (General) (12)
  - VM Naval architecture. Shipbuilding. Marine engineering (3)
- X General Subject (693)
- Z Bibliography. Library Science. Information Resources (93)
  - Z004 Books. Writing. Paleography (7)
  - Z665 Library Science. Information Science (25)
  - Z719 Libraries (General) (11)
  - ZA Information resources (54)
    - ZA4050 Electronic information resources (28)
    - ZA4450 Databases (14)