Classification
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
300 - Social sciences
304 - Factors affecting social behavior
1
320 - Political science
330 - Economics
1
340 - Law
1
360 - Social problems & services; associations
361 - Social problems & social welfare in general
2
364 - Criminology
1
500 - Natural sciences & mathematics
1
900 - History & geography