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