Classification
331 - Labor economics
658 - General management
2,962
005 - Computer programming, programs & data
2,372
330 - Economics
1,836
004 - Data processing & computer science
1,431
500 - Natural sciences & mathematics
1,430
384 - Communications; telecommunication
1,060
000 - Computer science, information & general works
1,034
302 - Social interaction
982
006 - Special computer methods
849
620 - Engineering & allied operations
834
300 - Social sciences
745
745 - Decorative arts
656
338 - Production
643
374 - Adult education
592
650 - Management & auxiliary services
405
381 - Commerce
362
158 - Applied psychology
257
670 - Manufacturing
208
621 - Applied physics
171
153 - Mental processes & intelligence
125
364 - Criminology
120
380 - Commerce, communications & transportation
91
600 - Technology
64
770 - Photography, photographs & computer art
64
001 - Knowledge
62
303 - Social processes
59
170 - Ethics
52
332 - Financial economics
52
741 - Drawing & drawings
51
304 - Factors affecting social behavior
46
510 - Mathematics
41
659 - Advertising & public relations
41
629 - Other branches of engineering
40
150 - Psychology
37
363 - Other social problems & services
35
519 - Probabilities & applied mathematics
31
681 - Precision instruments & other devices
26
011 - Bibliographies
24
368 - Insurance
23
790 - Recreational & performing arts
23
025 - Library operations
22
306 - Culture & institutions
21
777 - [Unassigned]
21
778 - Fields & kinds of photography
21
791 - Public performances
21
155 - Differential & developmental psychology
20
740 - Drawing & decorative arts
18
781 - General principles & musical forms
16
152 - Perception, movement, emotions & drives
13
more ...