Classification
170 - Ethics
330 - Economics
21
650 - Management & auxiliary services
657 - Accounting
320 - Political science
12
140 - Specific philosophical schools
11
363 - Other social problems & services
11
300 - Social sciences
8
658 - General management
6
380 - Commerce, communications & transportation
3
100 - Philosophy & psychology
2
340 - Law
2
361 - Social problems & social welfare in general
2
370 - Education
2
600 - Technology
2
610 - Medicine & health
2
000 - Computer science, information & general works
1
333 - Economics of land & energy
1