Classification
140 - Specific philosophical schools
170 - Ethics
100 - Philosophy & psychology
3
320 - Political science
3
200 - Religion
2
340 - Law
2
900 - History & geography
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
370 - Education
1