Classification
F - General American History
99
E - United States History
33
C - Historical Sciences
22
H - Social Science
19
K - Law
19
A - General Works
13
P - Language and Literature
11
S - Agriculture
10
J - Political Science
7
N - Fine Arts
6
M - Music
5
Q - Science
4
B - Philosophy, Psychology, Religion
3
D - World History
2
L - Education
2
T - Technology
1
U - Military Science
1
Z - Library Science
1