Classification
140 - Specific philosophical schools
170 - Ethics
300 - Social sciences
320 - Political science
100 - Philosophy & psychology
9
200 - Religion
6
330 - Economics
5
000 - Computer science, information & general works
3
301 - Sociology & anthropology
3
333 - Economics of land & energy
3
340 - Law
3
361 - Social problems & social welfare in general
2
600 - Technology
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
120 - Epistemology, causation & humankind
1
304 - Factors affecting social behavior
1
360 - Social problems & services; associations
1
363 - Other social problems & services
1
370 - Education
1
581 - Specific topics in natural history
1