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SDNB
000 Generalities, Science070 News media, journalismn, publishing200 Religion300 Social sciences320 Political science335 Military science360 Social services, association430 Germanic439 Other Germanic languages480 Hellenic languages Classical Greek510 Mathematics520 Astronomy & allied sciences550 Earth sciences560 Paleontology Paleozoology600 Technology (Applied sciences)690 Buildings700 The arts770 Photography & photographs830 Literatures of Germanic languages920 Biography, genealogy, insigniaK Children's and youth literature