Classification
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539 - Modern physics
1
546 - Inorganic chemistry
1
548 - Crystallography
1
550 - Earth sciences
4
551 - Geology, hydrology & meteorology
7
570 - Life sciences; biology
2
571 - Physiology & related subjects
4
572 - Biochemistry
4
576 - Genetics & evolution
17
577 - Ecology
21
580 - Plants (Botany)
3
581 - Specific topics in natural history
1
590 - Animals (Zoology)
26
591 - Specific topics in natural history
3
599 - Mammals
2
600 - Technology
14
610 - Medicine & health
8
612 - Human physiology
8
614 - Incidence & prevention of disease
1
616 - Diseases
3
620 - Engineering & allied operations
16
621 - Applied physics
10
630 - Agriculture & related technologies
9
636 - Animal husbandry
2
639 - Hunting, fishing & conservation
2
641 - Food & drink
4
650 - Management & auxiliary services
2
658 - General management
12
664 - Food technology
4
670 - Manufacturing
2
700 - The arts; fine & decorative arts
17
720 - Architecture
3
741 - Drawing & drawings
3
743 - Drawing & drawings by subject
2
745 - Decorative arts
2
751 - Techniques, equipment, materials & forms
1
770 - Photography, photographs & computer art
1
779 - Photographs
1
780 - Music
1
790 - Recreational & performing arts
8
793 - Indoor games & amusements
2
800 - Literature & rhetoric
2
808 - Rhetoric & collections of literature
1
809 - History, description & criticism
1
820 - English & Old English literatures
4
900 - History & geography
20
910 - Geography & travel
6
919 - Geography of & travel in other areas
1
930 - History of ancient world to ca. 499
3
960 - History of Africa
1