Dewey Decimal Classification
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- Dewey Decimal Classification (DDC) (67545)
- 100 Philosophy & psychology (3115)
- 200 Religion (1062)
- 300 Social sciences (10094)
- 400 Language (1121)
- 500 Science (25065)
- 600 Technology (25140)
- 700 Arts & recreation (773)
- 800 Literature (1183)
- 900 History & geography (1400)
Number of items at this level: 0.