Classification
200 - Religion
320 - Political science
3
700 - The arts; fine & decorative arts
3
900 - History & geography
3
100 - Philosophy & psychology
2
301 - Sociology & anthropology
2
000 - Computer science, information & general works
1
300 - Social sciences
1
304 - Factors affecting social behavior
1
330 - Economics
1
363 - Other social problems & services
1