Classification
100 - Philosophy & psychology
170 - Ethics
363 - Other social problems & services
581 - Specific topics in natural history
320 - Political science
4
140 - Specific philosophical schools
3
200 - Religion
3
333 - Economics of land & energy
3
700 - The arts; fine & decorative arts
3
330 - Economics
2
340 - Law
2
120 - Epistemology, causation & humankind
1
300 - Social sciences
1
301 - Sociology & anthropology
1
500 - Natural sciences & mathematics
1
530 - Physics
1
580 - Plants (Botany)
1
900 - History & geography
1