Classification
363 - Other social problems & services
17
333 - Economics of land & energy
8
303 - Social processes
6
320 - Political science
6
302 - Social interaction
5
355 - Military science
4
304 - Factors affecting social behavior
3
327 - International relations
3
338 - Production
3
004 - Data processing & computer science
2
306 - Culture & institutions
2
352 - General considerations of public administration
2
660 - Chemical engineering
2
170 - Ethics
1
321 - Systems of governments & states
1
323 - Civil & political rights
1
330 - Economics
1
343 - Military, tax, trade & industrial law
1
553 - Economic geology
1
745 - Decorative arts
1
781 - General principles & musical forms
1
940 - History of Europe
1
949 - Other parts of Europe
1
973 - United States
1