Topogràfic
P - Language and Literature
26
H - Social Science
15
J - Political Science
8
D - World History
6
F - General American History
5
N - Fine Arts
5
B - Filosofia, Psicologia, Religió
3
K - Law
3
L - Education
3
M - Music
3
G - Geography, Anthropology, Recreation
2
Z - Library Science
2
Q - Science
1
R - Medicine
1
T - Technology
1