Classification
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601 - Philosophy & theory
1
610 - Medicine & health
25
612 - Human physiology
9
613 - Personal health & safety
6
614 - Incidence & prevention of disease
4
615 - Pharmacology & therapeutics
8
616 - Diseases
56
617 - Surgery & related medical specialties
17
618 - Gynecology, obstetrics, pediatrics & geriatrics
7
620 - Engineering & allied operations
58
621 - Applied physics
67
624 - Civil engineering
15
625 - Engineering of railroads & roads
1
628 - Sanitary & municipal engineering
8
629 - Other branches of engineering
25
630 - Agriculture & related technologies
8
631 - Techniques, equipment & materials
3
636 - Animal husbandry
3
641 - Food & drink
6
650 - Management & auxiliary services
6
657 - Accounting
1
658 - General management
94
659 - Advertising & public relations
2
660 - Chemical engineering
8
664 - Food technology
9
670 - Manufacturing
6
690 - Buildings
10
696 - Utilities
2
697 - Heating, ventilating & air-conditioning
1
700 - The arts; fine & decorative arts
2
720 - Architecture
3
741 - Drawing & drawings
1
791 - Public performances
3
792 - Stage presentations
2
796 - Athletic & outdoor sports & games
2
801 - Philosophy & theory
1
808 - Rhetoric & collections of literature
1
809 - History, description & criticism
9
909 - World history
1
910 - Geography & travel
7
930 - History of ancient world to ca. 499
2
940 - History of Europe
3
941 - British Isles
1
950 - History of Asia; Far East
1
951 - China & adjacent areas
1
956 - Middle East (Near East)
1
980 - History of South America
1
994 - Australia
1