Signatura
D - World History
57
F - General American History
25
H - Social Science
6
P - Language and Literature
6
B - Philosophy, Psychology, Religion
5
E - United States History
4
J - Political Science
3
C - Historical Sciences
2
R - Medicine
2
A - General Works
1
G - Geography, Anthropology, Recreation
1
L - Education
1
Z - Library Science
1