Classification
370 - Education
780 - Music
700 - The arts; fine & decorative arts
3
100 - Philosophy & psychology
2
333 - Economics of land & energy
2
900 - History & geography
2
140 - Specific philosophical schools
1
320 - Political science
1
330 - Economics
1
360 - Social problems & services; associations
1
363 - Other social problems & services
1
500 - Natural sciences & mathematics
1
610 - Medicine & health
1