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DDC
- 310 General statistics31
- 004 Data processing computer science4
- 000 Computers, Information and General Reference2
- 500 Natural sciences and mathematics1
- 530 Physics1
- 700 Arts and recreation1
- 720 Architecture1
- 750 Paintings and paintings (museums)1
- 770 Photography and photographs1
- 900 History and geography1
- 940 General history of Europe1