Classification
170 - Ethics
900 - History & geography
100 - Philosophy & psychology
3
140 - Specific philosophical schools
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
200 - Religion
1
330 - Economics
1
333 - Economics of land & energy
1
340 - Law
1
576 - Genetics & evolution
1
658 - General management
1