Classification
361 - Social problems & social welfare in general
360 - Social problems & services; associations
39
320 - Political science
33
300 - Social sciences
21
330 - Economics
21
900 - History & geography
7
140 - Specific philosophical schools
6
304 - Factors affecting social behavior
6
610 - Medicine & health
6
301 - Sociology & anthropology
5
340 - Law
5
700 - The arts; fine & decorative arts
5
333 - Economics of land & energy
4
350 - Public administration & military science
4
364 - Criminology
4
370 - Education
4
170 - Ethics
3
600 - Technology
2
100 - Philosophy & psychology
1
200 - Religion
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
920 - Biography, genealogy & insignia
1