Classification
S - Agriculture
683
H - Social Science
363
M - Music
79
C - Historical Sciences
13
F - General American History
12
B - Philosophy, Psychology, Religion
11
D - World History
9
E - United States History
7
U - Military Science
6
Z - Library Science
6
K - Law
3
G - Geography, Anthropology, Recreation
2
J - Political Science
2
L - Education
2
Q - Science
2
T - Technology
2
N - Fine Arts
1
P - Language and Literature
1