Classification
341 - Law of nations
50
338 - Production
40
340 - Law
36
346 - Private law
34
342 - Constitutional & administrative law
32
343 - Military, tax, trade & industrial law
30
330 - Economics
28
332 - Financial economics
25
363 - Other social problems & services
24
345 - Criminal law
23
320 - Political science
21
306 - Culture & institutions
19
327 - International relations
18
344 - Labor, social, education & cultural law
17
551 - Geology, hydrology & meteorology
17
530 - Physics
14
304 - Factors affecting social behavior
12
323 - Civil & political rights
11
512 - Algebra
11
515 - Analysis
11
305 - Social groups
10
333 - Economics of land & energy
10
909 - World history
10
382 - International commerce
9
303 - Social processes
8
362 - Social welfare problems & services
8
174 - Occupational ethics
7
325 - International migration & colonization
6
337 - International economics
6
339 - Macroeconomics & related topics
6
347 - Civil procedure & courts
6
364 - Criminology
6
516 - Geometry
6
514 - Topology
5
658 - General management
5
172 - Political ethics
4
201 - Religious mythology & social theology
4
321 - Systems of governments & states
4
331 - Labor economics
4
349 - Law of specific jurisdictions & areas
4
355 - Military science
4
381 - Commerce
4
599 - Mammals
4
940 - History of Europe
4
301 - Sociology & anthropology
3
307 - Communities
3
361 - Social problems & social welfare in general
3
519 - Probabilities & applied mathematics
3
577 - Ecology
3
610 - Medicine & health
3
more ...