Classification
320 - Political science
330 - Economics
5
361 - Social problems & social welfare in general
650 - Management & auxiliary services
657 - Accounting
658 - General management
140 - Specific philosophical schools
4
170 - Ethics
2
610 - Medicine & health
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
200 - Religion
1
300 - Social sciences
1
333 - Economics of land & energy
1
340 - Law
1
363 - Other social problems & services
1
370 - Education
1
380 - Commerce, communications & transportation
1