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Institute
SDNB
000 Generalities, Science030 General encyclopedic works220 Bible290 Other & comparative religions310 General statistics330 Economics333.7 Natural resources, energy and environment370 Education550 Earth sciences620 Engineering & allied operations621.3 Electrical Engineering, Electronics730 Plastic arts Sculpture770 Photography & photographs793 Indoor games & amusements800 Literature & rhetoric930 History of the ancient world940 General history of Europe990 General history of other areas