Classification
610 - Medicine & health
65
100 - Philosophy & psychology
10
330 - Economics
9
300 - Social sciences
7
301 - Sociology & anthropology
6
361 - Social problems & social welfare in general
6
140 - Specific philosophical schools
5
320 - Political science
3
370 - Education
3
900 - History & geography
3
170 - Ethics
2
304 - Factors affecting social behavior
2
333 - Economics of land & energy
2
363 - Other social problems & services
2
636 - Animal husbandry
2
658 - General management
2
791 - Public performances
2
000 - Computer science, information & general works
1
120 - Epistemology, causation & humankind
1
380 - Commerce, communications & transportation
1
500 - Natural sciences & mathematics
1
581 - Specific topics in natural history
1
600 - Technology
1
612 - Human physiology
1
700 - The arts; fine & decorative arts
1