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DDC
- 004 Data processing computer science8
- 500 Natural sciences and mathematics7
- 750 Paintings and paintings (museums)6
- 510 Mathematics5
- 600 Technology, Medicine2
- 610 Medical sciences and medicine2
- 770 Photography and photographs2
- 000 Computers, Information and General Reference1
- 310 General statistics1
- 570 Life sciences1
- 590 Zoological sciences1
- 900 History and geography1