Classification
302 - Social interaction
880
320 - Political science
162
306 - Culture & institutions
94
380 - Commerce, communications & transportation
69
301 - Sociology & anthropology
51
658 - General management
37
070 - News media, journalism & publishing
34
300 - Social sciences
33
000 - Computer science, information & general works
29
305 - Social groups
25
791 - Public performances
17
407 - Education, research & related topics
16
418 - Standard usage & applied linguistics
16
700 - The arts; fine & decorative arts
16
004 - Data processing & computer science
15
303 - Social processes
15
304 - Factors affecting social behavior
15
140 - Specific philosophical schools
13
330 - Economics
13
370 - Education
11
900 - History & geography
11
333 - Economics of land & energy
10
600 - Technology
10
006 - Special computer methods
9
659 - Advertising & public relations
9
005 - Computer programming, programs & data
8
338 - Production
8
410 - Linguistics
8
340 - Law
7
363 - Other social problems & services
7
003 - Systems
5
155 - Differential & developmental psychology
5
401 - Philosophy & theory
5
621 - Applied physics
5
100 - Philosophy & psychology
4
501 - Philosophy & theory
4
551 - Geology, hydrology & meteorology
4
808 - Rhetoric & collections of literature
4
158 - Applied psychology
3
361 - Social problems & social welfare in general
3
414 - Phonology & phonetics
3
530 - Physics
3
610 - Medicine & health
3
612 - Human physiology
3
660 - Chemical engineering
3
149 - Other philosophical systems
2
150 - Psychology
2
343 - Military, tax, trade & industrial law
2
371 - Schools & their activities; special education
2
415 - Grammar
2
more ...