Classification
D - World History
54
P - Language and Literature
19
H - Social Science
16
A - General Works
10
B - Philosophy, Psychology, Religion
5
Q - Science
5
E - United States History
4
J - Political Science
4
N - Fine Arts
4
M - Music
2
F - General American History
1
G - Geography, Anthropology, Recreation
1
L - Education
1
R - Medicine
1
T - Technology
1