Classification
300 - Social sciences
320 - Political science
34
700 - The arts; fine & decorative arts
12
900 - History & geography
6
363 - Other social problems & services
4
301 - Sociology & anthropology
3
370 - Education
3
297 - Islam, Babism & Bahai Faith
2
330 - Economics
2
333 - Economics of land & energy
2
340 - Law
2
380 - Commerce, communications & transportation
2
600 - Technology
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
200 - Religion
1
304 - Factors affecting social behavior
1
530 - Physics
1
720 - Architecture
1
780 - Music
1