Classification
320 - Political science
330 - Economics
736
340 - Law
81
300 - Social sciences
42
700 - The arts; fine & decorative arts
42
900 - History & geography
34
333 - Economics of land & energy
28
630 - Agriculture & related technologies
24
600 - Technology
16
363 - Other social problems & services
13
380 - Commerce, communications & transportation
8
160 - Logic
7
610 - Medicine & health
7
304 - Factors affecting social behavior
5
576 - Genetics & evolution
4
370 - Education
2
200 - Religion
1