Classification
360 - Social problems & services; associations
361 - Social problems & social welfare in general
39
320 - Political science
24
300 - Social sciences
15
330 - Economics
8
610 - Medicine & health
5
700 - The arts; fine & decorative arts
4
350 - Public administration & military science
3
364 - Criminology
3
140 - Specific philosophical schools
2
170 - Ethics
2
301 - Sociology & anthropology
2
304 - Factors affecting social behavior
2
333 - Economics of land & energy
2
340 - Law
2
600 - Technology
2
370 - Education
1
380 - Commerce, communications & transportation
1
551 - Geology, hydrology & meteorology
1
900 - History & geography
1
920 - Biography, genealogy & insignia
1