Número de Clasificación
- B - Philosophy, Psychology, Religion 775 results
- R - Medicine 83 results
- D - World History 77 results
- P - Language and Literature 51 results
- M - Music 39 results
- H - Social Science 31 results
- L - Education 27 results
- N - Fine Arts 19 results
- F - General American History 12 results
- S - Agriculture 12 results
- E - United States History 9 results
- T - Technology 8 results
- G - Geography, Anthropology, Recreation 6 results
- C - Historical Sciences 5 results
- J - Political Science 5 results
- Q - Science 5 results
- K - Law 4 results
- Z - Library Science 4 results
- U - Military Science 1 results