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SDNB
300 Social sciences310 General statistics370 Education380 Commerce, communications, transport480 Hellenic languages Classical Greek500 Natural sciences540 Chemistry & allied sciences560 Paleontology Paleozoology570 Life science620 Engineering & allied operations690 Buildings710 Civic & landscape art780 Music890 Literatures of other languages943 General history of Europe Central Europe Germany980 General history of South America