Classification
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172 - Political ethics
1
301 - Sociology & anthropology
1
306 - Culture & institutions
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347 - Civil procedure & courts
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352 - General considerations of public administration
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361 - Social problems & social welfare in general
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364 - Criminology
1
374 - Adult education
1
380 - Commerce, communications & transportation
1
382 - International commerce
1
384 - Communications; telecommunication
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500 - Natural sciences & mathematics
1
530 - Physics
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570 - Life sciences; biology
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577 - Ecology
1
580 - Plants (Botany)
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590 - Animals (Zoology)
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601 - Philosophy & theory
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608 - Inventions & patents
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613 - Personal health & safety
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614 - Incidence & prevention of disease
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628 - Sanitary & municipal engineering
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629 - Other branches of engineering
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630 - Agriculture & related technologies
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690 - Buildings
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780 - Music
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808 - Rhetoric & collections of literature
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820 - English & Old English literatures
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910 - Geography & travel
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951 - China & adjacent areas
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