Classification
100 - Philosophy & psychology
300 - Social sciences
320 - Political science
11
900 - History & geography
7
370 - Education
5
600 - Technology
4
140 - Specific philosophical schools
3
200 - Religion
3
301 - Sociology & anthropology
3
340 - Law
3
700 - The arts; fine & decorative arts
3
610 - Medicine & health
2
620 - Engineering & allied operations
2
170 - Ethics
1
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
530 - Physics
1
630 - Agriculture & related technologies
1
780 - Music
1