Classification
100 - Philosophy & psychology
170 - Ethics
300 - Social sciences
320 - Political science
340 - Law
8
330 - Economics
7
900 - History & geography
7
610 - Medicine & health
5
200 - Religion
3
363 - Other social problems & services
3
370 - Education
3
600 - Technology
3
140 - Specific philosophical schools
2
301 - Sociology & anthropology
2
304 - Factors affecting social behavior
2
361 - Social problems & social welfare in general
2
380 - Commerce, communications & transportation
2
000 - Computer science, information & general works
1
120 - Epistemology, causation & humankind
1
333 - Economics of land & energy
1
360 - Social problems & services; associations
1
364 - Criminology
1
620 - Engineering & allied operations
1
658 - General management
1
700 - The arts; fine & decorative arts
1
780 - Music
1