Classification
330 - Economics
186
320 - Political science
12
304 - Factors affecting social behavior
4
900 - History & geography
4
363 - Other social problems & services
3
300 - Social sciences
2
301 - Sociology & anthropology
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
340 - Law
1
362 - Social welfare problems & services
1
364 - Criminology
1
613 - Personal health & safety
1
940 - History of Europe
1