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Institute
SDNB
000 Generalities, Science200 Religion300 Social sciences310 General statistics333.7 Natural resources, energy and environment400 Language, Linguistics420 English520 Astronomy & allied sciences580 Botanical sciences660 Chemical engineering770 Photography & photographs793 Indoor games & amusements860 Spanish & Portuguese literatures890 Literatures of other languages900 History930 History of the ancient world960 General history of Africa970 General history of North America