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Library of Congress Subject Areas (9451)
- A General Works (26)
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- G Geography. Anthropology. Recreation (100)
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  - HM Sociology (22)
    - (HM1-299) These are obsolete numbers no longer used by the Library of Congress (1)
    - HM1001-1281 Social psychology (12)
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    - HT101-395 Urban groups. The city. Urban sociology (16)
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  - HV Social pathology. Social and public welfare (26)
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- J Political Science (11)
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- L Education (1063)
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  - LB Theory and practice of education (807)
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    - LB5-45 General' (2)
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