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Institute
SDNB
150 Psychology230 Christian theology300 Social sciences320 Political science333.7 Natural resources, energy and environment390 Customs, etiquette, folklore400 Language, Linguistics520 Astronomy & allied sciences540 Chemistry & allied sciences560 Paleontology Paleozoology640 Home economics & family living660 Chemical engineering791 Public performances891.8 Slavic Literature930 History of the ancient world950 General history of Asia Far East960 General history of Africa