Classification
304 - Factors affecting social behavior
320 - Political science
4
300 - Social sciences
3
140 - Specific philosophical schools
2
330 - Economics
2
333 - Economics of land & energy
2
340 - Law
2
363 - Other social problems & services
2
000 - Computer science, information & general works
1
301 - Sociology & anthropology
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1