Classification
100 - Philosophy & psychology
9
170 - Ethics
320 - Political science
900 - History & geography
300 - Social sciences
7
330 - Economics
5
340 - Law
5
370 - Education
3
610 - Medicine & health
3
140 - Specific philosophical schools
2
200 - Religion
2
301 - Sociology & anthropology
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
658 - General management
2
000 - Computer science, information & general works
1
120 - Epistemology, causation & humankind
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
600 - Technology
1
620 - Engineering & allied operations
1
780 - Music
1