Classification
300 - Social sciences
900 - History & geography
320 - Political science
9
700 - The arts; fine & decorative arts
5
200 - Religion
4
800 - Literature & rhetoric
4
140 - Specific philosophical schools
3
000 - Computer science, information & general works
2
100 - Philosophy & psychology
2
370 - Education
2
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
330 - Economics
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
364 - Criminology
1
380 - Commerce, communications & transportation
1
780 - Music
1