Classification
320 - Political science
70
330 - Economics
68
340 - Law
64
900 - History & geography
60
576 - Genetics & evolution
59
940 - History of Europe
3
325 - International migration & colonization
2
342 - Constitutional & administrative law
2
300 - Social sciences
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
362 - Social welfare problems & services
1
371 - Schools & their activities; special education
1
909 - World history
1