Classification
100 - Philosophy & psychology
300 - Social sciences
320 - Political science
340 - Law
9
900 - History & geography
7
301 - Sociology & anthropology
3
610 - Medicine & health
3
200 - Religion
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
170 - Ethics
1
330 - Economics
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
780 - Music
1