Signatura
D - World History
32
P - Language and Literature
23
H - Social Science
14
J - Political Science
12
L - Education
6
K - Law
4
N - Fine Arts
4
B - Philosophy, Psychology, Religion
3
F - General American History
3
M - Music
3
R - Medicine
3
Q - Science
2
T - Technology
2
G - Geography, Anthropology, Recreation
1
V - Naval Science
1
Z - Library Science
1