Classification
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333 - Economics of land & energy
196
511 - General principles of mathematics
184
025 - Library operations
182
370 - Education
181
900 - History & geography
171
657 - Accounting
170
512 - Algebra
162
740 - Drawing & decorative arts
154
304 - Factors affecting social behavior
150
371 - Schools & their activities; special education
143
320 - Political science
137
686 - Printing & related activities
131
720 - Architecture
124
800 - Literature & rhetoric
108
100 - Philosophy & psychology
107
775 - Digital photography
107
790 - Recreational & performing arts
95
530 - Physics
90
152 - Perception, movement, emotions & drives
88
651 - Office services
88
400 - Language
87
362 - Social welfare problems & services
77
070 - News media, journalism & publishing
75
174 - Occupational ethics
75
003 - Systems
74
341 - Law of nations
74
140 - Specific philosophical schools
69
616 - Diseases
64
910 - Geography & travel
64
792 - Stage presentations
62
681 - Precision instruments & other devices
61
743 - Drawing & drawings by subject
58
306 - Culture & institutions
57
200 - Religion
56
410 - Linguistics
55
780 - Music
54
340 - Law
51
516 - Geometry
51
352 - General considerations of public administration
48
660 - Chemical engineering
48
301 - Sociology & anthropology
41
514 - Topology
41
305 - Social groups
39
751 - Techniques, equipment, materials & forms
35
776 - Computer art (Digital art)
35
343 - Military, tax, trade & industrial law
32
779 - Photographs
32
572 - Biochemistry
30
612 - Human physiology
30
624 - Civil engineering
30
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