Classification
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551 - Geology, hydrology & meteorology
2
570 - Life sciences; biology
1
576 - Genetics & evolution
2
577 - Ecology
1
580 - Plants (Botany)
1
590 - Animals (Zoology)
1
600 - Technology
5
601 - Philosophy & theory
1
608 - Inventions & patents
1
610 - Medicine & health
24
613 - Personal health & safety
1
614 - Incidence & prevention of disease
1
615 - Pharmacology & therapeutics
2
616 - Diseases
11
617 - Surgery & related medical specialties
8
620 - Engineering & allied operations
3
621 - Applied physics
3
628 - Sanitary & municipal engineering
1
629 - Other branches of engineering
1
630 - Agriculture & related technologies
1
636 - Animal husbandry
1
650 - Management & auxiliary services
4
657 - Accounting
5
658 - General management
18
690 - Buildings
1
700 - The arts; fine & decorative arts
3
780 - Music
1
808 - Rhetoric & collections of literature
1
820 - English & Old English literatures
1
900 - History & geography
5
910 - Geography & travel
1
951 - China & adjacent areas
1