Classification
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539 - Modern physics
2
570 - Life sciences; biology
1
571 - Physiology & related subjects
1
600 - Technology
6
604 - Special topics
1
610 - Medicine & health
1
620 - Engineering & allied operations
44
621 - Applied physics
25
629 - Other branches of engineering
1
643 - Housing & household equipment
2
650 - Management & auxiliary services
33
651 - Office services
4
652 - Processes of written communication
1
657 - Accounting
45
658 - General management
288
659 - Advertising & public relations
21
670 - Manufacturing
39
671 - Metalworking & primary metal products
1
686 - Printing & related activities
1
690 - Buildings
1
696 - Utilities
1
700 - The arts; fine & decorative arts
1
740 - Drawing & decorative arts
2
741 - Drawing & drawings
4
745 - Decorative arts
83
770 - Photography, photographs & computer art
66
771 - Techniques, equipment & materials
40
775 - Digital photography
4
777 - [Unassigned]
6
778 - Fields & kinds of photography
7
780 - Music
1
781 - General principles & musical forms
6
791 - Public performances
3
793 - Indoor games & amusements
3
794 - Indoor games of skill
8
808 - Rhetoric & collections of literature
10
910 - Geography & travel
1