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SDNB
004 Data processing Computer sciences130 Paranormal phenomena330 Economics350 Public administration360 Social services, association380 Commerce, communications, transport390 Customs, etiquette, folklore400 Language, Linguistics450 Italian, Romanian, Rhaeto-Romanic600 Technology (Applied sciences)620 Engineering & allied operations621.3 Electrical Engineering, Electronics690 Buildings760 Graphic arts Printmaking & prints930 History of the ancient world