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SDNB
150 Psychology300 Social sciences330 Economics340 Law360 Social services, association390 Customs, etiquette, folklore460 Spanish & Portugese languages540 Chemistry & allied sciences580 Botanical sciences590 Zoological sciences600 Technology (Applied sciences)630 Agriculture820 English & Old English literatures900 History910 Geography & travel920 Biography, genealogy, insignia930 History of the ancient world