Classification
100 - Philosophy & psychology
170 - Ethics
200 - Religion
363 - Other social problems & services
370 - Education
320 - Political science
5
300 - Social sciences
4
600 - Technology
4
900 - History & geography
4
120 - Epistemology, causation & humankind
3
340 - Law
3
140 - Specific philosophical schools
2
333 - Economics of land & energy
2
301 - Sociology & anthropology
1
551 - Geology, hydrology & meteorology
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1