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SDNB
030 General encyclopedic works050 General serials & their indexes300 Social sciences400 Language, Linguistics420 English560 Paleontology Paleozoology610 Medical sciences Medicine621.3 Electrical Engineering, Electronics624 Structural and Environmental Engineering640 Home economics & family living650 Management & auxialiary services660 Chemical engineering820 English & Old English literatures900 History914.3 Geography & travel Germany970 General history of North America