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