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SDNB
130 Paranormal phenomena300 Social sciences320 Political science330 Economics333.7 Natural resources, energy and environment370 Education400 Language, Linguistics491.8 Slavic languages520 Astronomy & allied sciences570 Life science580 Botanical sciences620 Engineering & allied operations624 Structural and Environmental Engineering660 Chemical engineering670 Manufacturing793 Indoor games & amusements820 English & Old English literatures850 Italian, Romanian, Rhaeto-Romanic literatures860 Spanish & Portuguese literatures900 History920 Biography, genealogy, insignia990 General history of other areas