Signum
P - Language and Literature
44
B - Philosophy, Psychology, Religion
11
H - Social Science
7
F - General American History
3
J - Political Science
3
G - Geography, Anthropology, Recreation
2
K - Law
2
M - Music
2
Q - Science
2
T - Technology
2
Z - Library Science
2
A - General Works
1
D - World History
1
R - Medicine
1
S - Agriculture
1
U - Military Science
1