Classification
170 - Ethics
320 - Political science
330 - Economics
12
650 - Management & auxiliary services
12
657 - Accounting
12
140 - Specific philosophical schools
6
300 - Social sciences
6
363 - Other social problems & services
4
100 - Philosophy & psychology
2
361 - Social problems & social welfare in general
2
370 - Education
2
380 - Commerce, communications & transportation
2
610 - Medicine & health
2
658 - General management
2
000 - Computer science, information & general works
1
333 - Economics of land & energy
1
340 - Law
1
600 - Technology
1