Classification
302 - Social interaction
618
320 - Political science
156
380 - Commerce, communications & transportation
85
306 - Culture & institutions
79
000 - Computer science, information & general works
44
301 - Sociology & anthropology
40
658 - General management
34
070 - News media, journalism & publishing
32
300 - Social sciences
30
791 - Public performances
26
305 - Social groups
20
700 - The arts; fine & decorative arts
19
330 - Economics
18
418 - Standard usage & applied linguistics
17
407 - Education, research & related topics
16
303 - Social processes
15
304 - Factors affecting social behavior
15
140 - Specific philosophical schools
14
004 - Data processing & computer science
13
600 - Technology
12
333 - Economics of land & energy
11
370 - Education
11
410 - Linguistics
10
659 - Advertising & public relations
10
900 - History & geography
9
005 - Computer programming, programs & data
8
006 - Special computer methods
8
338 - Production
8
340 - Law
6
363 - Other social problems & services
6
100 - Philosophy & psychology
5
401 - Philosophy & theory
5
003 - Systems
4
155 - Differential & developmental psychology
4
501 - Philosophy & theory
4
551 - Geology, hydrology & meteorology
4
808 - Rhetoric & collections of literature
4
361 - Social problems & social welfare in general
3
530 - Physics
3
610 - Medicine & health
3
612 - Human physiology
3
621 - Applied physics
3
660 - Chemical engineering
3
780 - Music
3
800 - Literature & rhetoric
3
149 - Other philosophical systems
2
150 - Psychology
2
158 - Applied psychology
2
343 - Military, tax, trade & industrial law
2
371 - Schools & their activities; special education
2
more ...