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SDNB
200 Religion320 Political science333.7 Natural resources, energy and environment370 Education380 Commerce, communications, transport390 Customs, etiquette, folklore400 Language, Linguistics460 Spanish & Portugese languages480 Hellenic languages Classical Greek510 Mathematics590 Zoological sciences600 Technology (Applied sciences)660 Chemical engineering690 Buildings741.5 Comics Cartoons970 General history of North America