Dewey Decimal Classification
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- Dewey Decimal Classification (DDC) (68486)
- 100 Philosophy & psychology (3136)
- 200 Religion (1063)
- 300 Social sciences (10277)
- 400 Language (1135)
- 500 Science (25386)
- 600 Technology (25624)
- 700 Arts & recreation (774)
- 800 Literature (1191)
- 900 History & geography (1402)
Number of items at this level: 0.