Classification
330 - Economics
2
340 - Law
370 - Education
650 - Management & auxiliary services
657 - Accounting
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
170 - Ethics
1
300 - Social sciences
1
320 - Political science
1
361 - Social problems & social welfare in general
1
610 - Medicine & health
1
658 - General management
1