Classification
320 - Political science
247
306 - Culture & institutions
38
304 - Factors affecting social behavior
25
351 - Public administration
24
338 - Production
18
658 - General management
14
307 - Communities
13
327 - International relations
12
361 - Social problems & social welfare in general
12
305 - Social groups
11
610 - Medicine & health
11
341 - Law of nations
9
363 - Other social problems & services
9
303 - Social processes
8
324 - The political process
8
330 - Economics
8
352 - General considerations of public administration
8
336 - Public finance
7
364 - Criminology
7
302 - Social interaction
6
301 - Sociology & anthropology
5
355 - Military science
5
613 - Personal health & safety
5
614 - Incidence & prevention of disease
5
342 - Constitutional & administrative law
4
621 - Applied physics
4
910 - Geography & travel
4
300 - Social sciences
3
323 - Civil & political rights
3
333 - Economics of land & energy
3
340 - Law
3
344 - Labor, social, education & cultural law
3
004 - Data processing & computer science
2
005 - Computer programming, programs & data
2
150 - Psychology
2
170 - Ethics
2
322 - Relation of state to organized groups
2
325 - International migration & colonization
2
500 - Natural sciences & mathematics
2
519 - Probabilities & applied mathematics
2
530 - Physics
2
551 - Geology, hydrology & meteorology
2
629 - Other branches of engineering
2
158 - Applied psychology
1
175 - Ethics of recreation & leisure
1
230 - Christianity & Christian theology
1
331 - Labor economics
1
332 - Financial economics
1
335 - Socialism & related systems
1
339 - Macroeconomics & related topics
1
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