Classification
320 - Political science
125
330 - Economics
124
370 - Education
69
340 - Law
55
300 - Social sciences
47
900 - History & geography
47
140 - Specific philosophical schools
39
323 - Civil & political rights
36
304 - Factors affecting social behavior
35
700 - The arts; fine & decorative arts
32
100 - Philosophy & psychology
26
363 - Other social problems & services
26
333 - Economics of land & energy
24
342 - Constitutional & administrative law
24
000 - Computer science, information & general works
17
380 - Commerce, communications & transportation
17
305 - Social groups
13
200 - Religion
12
306 - Culture & institutions
11
400 - Language
10
551 - Geology, hydrology & meteorology
9
800 - Literature & rhetoric
9
301 - Sociology & anthropology
8
170 - Ethics
7
576 - Genetics & evolution
7
600 - Technology
7
610 - Medicine & health
7
297 - Islam, Babism & Bahai Faith
5
350 - Public administration & military science
5
361 - Social problems & social welfare in general
5
500 - Natural sciences & mathematics
5
341 - Law of nations
4
296 - Judaism
3
324 - The political process
3
325 - International migration & colonization
3
378 - Higher education
3
410 - Linguistics
3
303 - Social processes
2
321 - Systems of governments & states
2
331 - Labor economics
2
332 - Financial economics
2
346 - Private law
2
374 - Adult education
2
375 - Curricula
2
658 - General management
2
720 - Architecture
2
780 - Music
2
973 - United States
2
070 - News media, journalism & publishing
1
160 - Logic
1
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