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SDNB
333.7 Natural resources, energy and environment360 Social services, association510 Mathematics600 Technology (Applied sciences)610 Medical sciences Medicine620 Engineering & allied operations621.3 Electrical Engineering, Electronics650 Management & auxialiary services670 Manufacturing890 Literatures of other languages920 Biography, genealogy, insignia950 General history of Asia Far East960 General history of Africa980 General history of South AmericaK Children's and youth literature