Classification
320 - Political science
900 - History & geography
330 - Economics
65
300 - Social sciences
10
340 - Law
9
576 - Genetics & evolution
9
700 - The arts; fine & decorative arts
5
333 - Economics of land & energy
4
630 - Agriculture & related technologies
4
000 - Computer science, information & general works
3
380 - Commerce, communications & transportation
3
363 - Other social problems & services
2
610 - Medicine & health
2
800 - Literature & rhetoric
2
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
600 - Technology
1
770 - Photography, photographs & computer art
1
780 - Music
1