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SDNB
004 Data processing Computer sciences020 Library & information sciences030 General encyclopedic works070 News media, journalismn, publishing150 Psychology380 Commerce, communications, transport580 Botanical sciences610 Medical sciences Medicine630 Agriculture670 Manufacturing700 The arts760 Graphic arts Printmaking & prints791 Public performances793 Indoor games & amusements830 Literatures of Germanic languages900 History960 General history of Africa990 General history of other areas