Classification
100 - Philosophy & psychology
360 - Social problems & services; associations
361 - Social problems & social welfare in general
5
320 - Political science
3
330 - Economics
2
610 - Medicine & health
2
140 - Specific philosophical schools
1
300 - Social sciences
1
340 - Law
1
364 - Criminology
1
370 - Education
1
500 - Natural sciences & mathematics
1
900 - History & geography
1