Número de Clasificación
- H - Social Science 170 results
- B - Philosophy, Psychology, Religion 46 results
- R - Medicine 34 results
- D - World History 22 results
- P - Language and Literature 18 results
- Q - Science 18 results
- T - Technology 10 results
- J - Political Science 6 results
- M - Music 6 results
- G - Geography, Anthropology, Recreation 4 results
- F - General American History 2 results
- K - Law 2 results
- S - Agriculture 2 results
- V - Naval Science 2 results
- Z - Library Science 2 results