Classification
300 - Social sciences
320 - Political science
330 - Economics
657 - Accounting
650 - Management & auxiliary services
8
170 - Ethics
6
140 - Specific philosophical schools
4
363 - Other social problems & services
4
658 - General management
3
370 - Education
2
600 - Technology
2
610 - Medicine & health
2
333 - Economics of land & energy
1
340 - Law
1
361 - Social problems & social welfare in general
1
380 - Commerce, communications & transportation
1
551 - Geology, hydrology & meteorology
1