Classification
300 - Social sciences
610 - Medicine & health
320 - Political science
6
140 - Specific philosophical schools
5
330 - Economics
4
100 - Philosophy & psychology
3
333 - Economics of land & energy
3
370 - Education
3
301 - Sociology & anthropology
2
340 - Law
2
363 - Other social problems & services
2
600 - Technology
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
000 - Computer science, information & general works
1
170 - Ethics
1
304 - Factors affecting social behavior
1
380 - Commerce, communications & transportation
1
400 - Language
1
551 - Geology, hydrology & meteorology
1
581 - Specific topics in natural history
1
658 - General management
1