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SDNB
004 Data processing Computer sciences020 Library & information sciences030 General encyclopedic works070 News media, journalismn, publishing080 General collections350 Public administration335 Military science400 Language, Linguistics420 English560 Paleontology Paleozoology570 Life science610 Medical sciences Medicine621.3 Electrical Engineering, Electronics650 Management & auxialiary services910 Geography & travel990 General history of other areas