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DDC
- 570 Life sciences18
- 13
- 500 Natural sciences and mathematics12
- 590 Zoological sciences10
- 550 Earth sciences9
- 300 Social sciences8
- 610 Medical sciences and medicine8
- 320 Political science6
- 560 Paleontology, Paleozoology6
- 600 Technology, Medicine6
- 004 Data processing computer science3
- 530 Physics3
- 000 Computers, Information and General Reference2
- 700 Arts and recreation2
- 900 History and geography2
- 940 General history of Europe2
- 020 Library and information science1
- 720 Architecture1
- 750 Paintings and paintings (museums)1
- 770 Photography and photographs1