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SDNB
004 Data processing Computer sciences010 Bibliography050 General serials & their indexes070 News media, journalismn, publishing220 Bible290 Other & comparative religions310 General statistics330 Economics335 Military science390 Customs, etiquette, folklore440 Romance languages French460 Spanish & Portugese languages470 Italic Latin500 Natural sciences530 Physics560 Paleontology Paleozoology621.3 Electrical Engineering, Electronics650 Management & auxialiary services