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Library of Congress Subject Areas (14381)
- A General Works (358)
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- B Philosophy. Psychology. Religion (372)
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- C Auxiliary Sciences of History (2)
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- D History General and Old World (34)
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- H Social Sciences (4191)
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- J Political Science (576)
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- M Music and Books on Music (2)
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- N Fine Arts (544)
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- Q Science (4391)
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- R Medicine (197)
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- T Technology (4463)
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- V Naval Science (2)
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- Z Bibliography. Library Science. Information Resources (391)
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