Signatura
D - World History
16
P - Language and Literature
16
H - Social Science
8
B - Philosophy, Psychology, Religion
7
K - Law
5
C - Historical Sciences
4
N - Fine Arts
4
L - Education
3
Q - Science
3
R - Medicine
3
F - General American History
2
J - Political Science
2
A - General Works
1
G - Geography, Anthropology, Recreation
1
T - Technology
1