Classification
170 - Ethics
340 - Law
370 - Education
140 - Specific philosophical schools
6
100 - Philosophy & psychology
3
300 - Social sciences
3
333 - Economics of land & energy
3
900 - History & geography
3
200 - Religion
2
297 - Islam, Babism & Bahai Faith
2
304 - Factors affecting social behavior
2
320 - Political science
2
330 - Economics
2
380 - Commerce, communications & transportation
2
600 - Technology
2
610 - Medicine & health
2
120 - Epistemology, causation & humankind
1
301 - Sociology & anthropology
1
400 - Language
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
700 - The arts; fine & decorative arts
1