Klassifikationsnummer
- H - Social Science 170 results
- B - Philosophy, Psychology, Religion 74 results
- J - Political Science 27 results
- D - World History 9 results
- L - Education 6 results
- P - Language and Literature 5 results
- C - Historical Sciences 4 results
- G - Geography, Anthropology, Recreation 2 results
- K - Law 2 results