Classification
360 - Social problems & services; associations
361 - Social problems & social welfare in general
144
320 - Political science
70
330 - Economics
47
300 - Social sciences
38
610 - Medicine & health
28
658 - General management
25
170 - Ethics
16
364 - Criminology
16
370 - Education
16
200 - Religion
14
340 - Law
14
140 - Specific philosophical schools
13
100 - Philosophy & psychology
12
700 - The arts; fine & decorative arts
11
900 - History & geography
9
600 - Technology
8
304 - Factors affecting social behavior
7
363 - Other social problems & services
6
301 - Sociology & anthropology
5
380 - Commerce, communications & transportation
5
551 - Geology, hydrology & meteorology
5
333 - Economics of land & energy
4
000 - Computer science, information & general works
3
350 - Public administration & military science
3
620 - Engineering & allied operations
3
400 - Language
2
780 - Music
2
296 - Judaism
1
297 - Islam, Babism & Bahai Faith
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
630 - Agriculture & related technologies
1
920 - Biography, genealogy & insignia
1