Classification
170 - Ethics
2
300 - Social sciences
2
320 - Political science
330 - Economics
361 - Social problems & social welfare in general
370 - Education
610 - Medicine & health
658 - General management
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
200 - Religion
1
340 - Law
1
360 - Social problems & services; associations
1
380 - Commerce, communications & transportation
1
650 - Management & auxiliary services
1
657 - Accounting
1
780 - Music
1
900 - History & geography
1