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