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Institute
SDNB
050 General serials & their indexes230 Christian theology310 General statistics370 Education470 Italic Latin491.8 Slavic languages500 Natural sciences570 Life science580 Botanical sciences600 Technology (Applied sciences)630 Agriculture650 Management & auxialiary services670 Manufacturing720 Architecture791 Public performances792 Stage presentations891.8 Slavic Literature900 History910 Geography & travel960 General history of Africa970 General history of North America