Signum
P - Language and Literature
37
E - United States History
33
H - Social Science
26
T - Technology
26
L - Education
11
D - World History
6
J - Political Science
5
K - Law
5
F - General American History
4
Z - Library Science
3
B - Philosophy, Psychology, Religion
2
R - Medicine
2
C - Historical Sciences
1
G - Geography, Anthropology, Recreation
1
Q - Science
1
U - Military Science
1