Classification
303 - Social processes
49
320 - Political science
48
370 - Education
43
306 - Culture & institutions
31
361 - Social problems & social welfare in general
29
305 - Social groups
26
330 - Economics
25
340 - Law
25
333 - Economics of land & energy
24
300 - Social sciences
21
364 - Criminology
21
140 - Specific philosophical schools
20
327 - International relations
20
304 - Factors affecting social behavior
18
363 - Other social problems & services
18
100 - Philosophy & psychology
17
700 - The arts; fine & decorative arts
16
307 - Communities
13
378 - Higher education
13
170 - Ethics
12
371 - Schools & their activities; special education
11
301 - Sociology & anthropology
9
900 - History & geography
9
338 - Production
8
200 - Religion
7
302 - Social interaction
7
323 - Civil & political rights
7
000 - Computer science, information & general works
5
341 - Law of nations
5
581 - Specific topics in natural history
5
600 - Technology
5
614 - Incidence & prevention of disease
5
296 - Judaism
4
331 - Labor economics
4
360 - Social problems & services; associations
4
375 - Curricula
4
400 - Language
4
551 - Geology, hydrology & meteorology
4
610 - Medicine & health
4
613 - Personal health & safety
4
658 - General management
4
174 - Occupational ethics
3
379 - Public policy issues in education
3
322 - Relation of state to organized groups
2
325 - International migration & colonization
2
342 - Constitutional & administrative law
2
346 - Private law
2
362 - Social welfare problems & services
2
500 - Natural sciences & mathematics
2
745 - Decorative arts
2
more ...