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Library of Congress Subject Areas (999)
- B Philosophy. Psychology. Religion (1)
  - BF Psychology (1)
- C Auxiliary Sciences of History (2)
  - CC Archaeology (2)
- G Geography. Anthropology. Recreation (183)
  - G Geography (General) (39)
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  - GF Human ecology. Anthropogeography (2)
- H Social Sciences (129)
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    - HD61 Risk Management (1)
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  - HZ Economic and Institutional Analysis (119)
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- N Fine Arts (1)
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- Q Science (587)
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  - QS Ecology (133)
- R Medicine (5)
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    - RA0421 Public health. Hygiene. Preventive Medicine (3)
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- S Agriculture (57)
  - S Agriculture (General) (45)
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  - SH Aquaculture. Fisheries. Angling (9)
- T Technology (482)
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  - TA Engineering (General). Civil engineering (General) (45)
  - TC Hydraulic engineering. Ocean engineering (6)
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  - TP Chemical technology (152)
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