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DDC
- 6
- 004 Data processing computer science5
- 300 Social sciences4
- 570 Life sciences3
- 610 Medical sciences and medicine3
- 700 Arts and recreation3
- 750 Paintings and paintings (museums)3
- 770 Photography and photographs3
- 900 History and geography3
- 000 Computers, Information and General Reference2
- 500 Natural sciences and mathematics2
- 600 Technology, Medicine2
- 720 Architecture2
- 940 General history of Europe2
- 320 Political science1
- 510 Mathematics1
- 550 Earth sciences1
- 590 Zoological sciences1