Classification
610 - Medicine & health
150
330 - Economics
22
700 - The arts; fine & decorative arts
13
370 - Education
12
100 - Philosophy & psychology
10
333 - Economics of land & energy
8
140 - Specific philosophical schools
6
000 - Computer science, information & general works
5
362 - Social welfare problems & services
4
380 - Commerce, communications & transportation
4
900 - History & geography
4
363 - Other social problems & services
3
304 - Factors affecting social behavior
2
320 - Political science
2
361 - Social problems & social welfare in general
2
551 - Geology, hydrology & meteorology
2
570 - Life sciences; biology
2
600 - Technology
2
658 - General management
2
170 - Ethics
1
300 - Social sciences
1
301 - Sociology & anthropology
1
400 - Language
1
576 - Genetics & evolution
1
630 - Agriculture & related technologies
1