Classification
100 - Philosophy & psychology
170 - Ethics
200 - Religion
370 - Education
140 - Specific philosophical schools
3
320 - Political science
3
333 - Economics of land & energy
3
900 - History & geography
3
300 - Social sciences
2
340 - Law
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
610 - Medicine & health
2
700 - The arts; fine & decorative arts
2
120 - Epistemology, causation & humankind
1
297 - Islam, Babism & Bahai Faith
1
330 - Economics
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
551 - Geology, hydrology & meteorology
1
658 - General management
1
780 - Music
1