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SDNB
004 Data processing Computer sciences420 English450 Italian, Romanian, Rhaeto-Romanic470 Italic Latin530 Physics600 Technology (Applied sciences)620 Engineering & allied operations630 Agriculture740 Drawing & decorative arts810 American literature in English891.8 Slavic Literature900 History943 General history of Europe Central Europe Germany950 General history of Asia Far East970 General history of North America990 General history of other areas