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SDNB
200 Religion320 Political science460 Spanish & Portugese languages490 Other languages491.8 Slavic languages500 Natural sciences510 Mathematics520 Astronomy & allied sciences620 Engineering & allied operations621.3 Electrical Engineering, Electronics760 Graphic arts Printmaking & prints770 Photography & photographs860 Spanish & Portuguese literatures890 Literatures of other languages980 General history of South America