Classification
361 - Social problems & social welfare in general
186
320 - Political science
136
330 - Economics
119
306 - Culture & institutions
63
300 - Social sciences
47
305 - Social groups
45
338 - Production
43
304 - Factors affecting social behavior
41
301 - Sociology & anthropology
33
610 - Medicine & health
30
900 - History & geography
28
331 - Labor economics
25
340 - Law
20
360 - Social problems & services; associations
19
370 - Education
16
700 - The arts; fine & decorative arts
14
336 - Public finance
13
362 - Social welfare problems & services
12
333 - Economics of land & energy
11
302 - Social interaction
9
303 - Social processes
9
364 - Criminology
9
140 - Specific philosophical schools
8
327 - International relations
8
339 - Macroeconomics & related topics
8
380 - Commerce, communications & transportation
8
341 - Law of nations
7
307 - Communities
6
337 - International economics
6
614 - Incidence & prevention of disease
6
350 - Public administration & military science
5
363 - Other social problems & services
5
613 - Personal health & safety
5
658 - General management
5
800 - Literature & rhetoric
5
100 - Philosophy & psychology
4
174 - Occupational ethics
4
200 - Religion
4
323 - Civil & political rights
4
332 - Financial economics
4
344 - Labor, social, education & cultural law
4
500 - Natural sciences & mathematics
4
571 - Physiology & related subjects
4
000 - Computer science, information & general works
3
321 - Systems of governments & states
3
324 - The political process
3
335 - Socialism & related systems
3
342 - Constitutional & administrative law
3
371 - Schools & their activities; special education
3
600 - Technology
3
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