Classification
320 - Political science
56
300 - Social sciences
52
330 - Economics
17
700 - The arts; fine & decorative arts
17
304 - Factors affecting social behavior
12
370 - Education
12
340 - Law
10
100 - Philosophy & psychology
6
363 - Other social problems & services
6
900 - History & geography
5
297 - Islam, Babism & Bahai Faith
3
333 - Economics of land & energy
3
576 - Genetics & evolution
3
000 - Computer science, information & general works
2
140 - Specific philosophical schools
2
170 - Ethics
2
200 - Religion
2
301 - Sociology & anthropology
2
350 - Public administration & military science
2
551 - Geology, hydrology & meteorology
2
581 - Specific topics in natural history
2
600 - Technology
2
160 - Logic
1
302 - Social interaction
1
342 - Constitutional & administrative law
1
361 - Social problems & social welfare in general
1
380 - Commerce, communications & transportation
1
410 - Linguistics
1
610 - Medicine & health
1
720 - Architecture
1