Classification
330 - Economics
650 - Management & auxiliary services
657 - Accounting
320 - Political science
5
140 - Specific philosophical schools
3
170 - Ethics
3
363 - Other social problems & services
3
300 - Social sciences
2
658 - General management
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
333 - Economics of land & energy
1
361 - Social problems & social welfare in general
1
370 - Education
1
380 - Commerce, communications & transportation
1
610 - Medicine & health
1