Classification
320 - Political science
1,362
327 - International relations
258
306 - Culture & institutions
172
658 - General management
154
304 - Factors affecting social behavior
109
338 - Production
71
363 - Other social problems & services
53
324 - The political process
52
305 - Social groups
46
351 - Public administration
42
333 - Economics of land & energy
38
330 - Economics
35
307 - Communities
29
323 - Civil & political rights
29
303 - Social processes
28
325 - International migration & colonization
26
301 - Sociology & anthropology
23
341 - Law of nations
23
551 - Geology, hydrology & meteorology
21
960 - History of Africa
20
322 - Relation of state to organized groups
18
361 - Social problems & social welfare in general
17
340 - Law
16
339 - Macroeconomics & related topics
15
577 - Ecology
15
657 - Accounting
14
332 - Financial economics
13
910 - Geography & travel
12
174 - Occupational ethics
11
302 - Social interaction
11
370 - Education
11
328 - The legislative process
10
343 - Military, tax, trade & industrial law
10
364 - Criminology
10
300 - Social sciences
9
342 - Constitutional & administrative law
8
346 - Private law
8
355 - Military science
8
621 - Applied physics
8
336 - Public finance
7
650 - Management & auxiliary services
7
809 - History, description & criticism
7
900 - History & geography
7
004 - Data processing & computer science
6
331 - Labor economics
6
344 - Labor, social, education & cultural law
6
630 - Agriculture & related technologies
6
950 - History of Asia; Far East
6
006 - Special computer methods
5
407 - Education, research & related topics
5
more ...