Classification
H - Social Science
33
D - World History
26
P - Language and Literature
24
J - Political Science
11
B - Philosophy, Psychology, Religion
9
U - Military Science
9
L - Education
6
E - United States History
5
K - Law
4
S - Agriculture
2
G - Geography, Anthropology, Recreation
1
N - Fine Arts
1
Q - Science
1
T - Technology
1
V - Naval Science
1
Z - Library Science
1