Signatura
D - World History
34
P - Language and Literature
19
H - Social Science
16
B - Philosophy, Psychology, Religion
7
M - Music
7
F - General American History
5
J - Political Science
5
N - Fine Arts
4
V - Naval Science
3
L - Education
2
C - Historical Sciences
1
G - Geography, Anthropology, Recreation
1
Q - Science
1
U - Military Science
1
Z - Library Science
1