Classification
100 - Philosophy & psychology
140 - Specific philosophical schools
2
200 - Religion
363 - Other social problems & services
900 - History & geography
2
000 - Computer science, information & general works
1
170 - Ethics
1
301 - Sociology & anthropology
1
333 - Economics of land & energy
1
370 - Education
1
530 - Physics
1
581 - Specific topics in natural history
1
610 - Medicine & health
1