Classification
363 - Other social problems & services
340 - Law
8
344 - Labor, social, education & cultural law
5
320 - Political science
4
140 - Specific philosophical schools
3
100 - Philosophy & psychology
2
330 - Economics
2
333 - Economics of land & energy
2
350 - Public administration & military science
2
380 - Commerce, communications & transportation
2
700 - The arts; fine & decorative arts
2
170 - Ethics
1
581 - Specific topics in natural history
1
630 - Agriculture & related technologies
1
658 - General management
1
900 - History & geography
1