Signatura
H - Social Science
22
P - Language and Literature
19
F - General American History
9
A - General Works
6
E - United States History
4
K - Law
4
N - Fine Arts
4
Q - Science
3
R - Medicine
3
G - Geography, Anthropology, Recreation
2
M - Music
2
C - Historical Sciences
1
D - World History
1
J - Political Science
1
L - Education
1
T - Technology
1