Classification
D - World History
93
E - United States History
55
P - Language and Literature
54
B - Philosophy, Psychology, Religion
51
K - Law
31
H - Social Science
13
M - Music
13
R - Medicine
9
J - Political Science
7
C - Historical Sciences
5
T - Technology
5
F - General American History
4
N - Fine Arts
4
L - Education
3
Q - Science
3
A - General Works
1
G - Geography, Anthropology, Recreation
1
S - Agriculture
1
U - Military Science
1
Z - Library Science
1