Classification
320 - Political science
173
330 - Economics
173
300 - Social sciences
54
340 - Law
26
100 - Philosophy & psychology
17
900 - History & geography
17
630 - Agriculture & related technologies
14
170 - Ethics
9
200 - Religion
3
370 - Education
3
576 - Genetics & evolution
3
140 - Specific philosophical schools
1