Classification
H - Social Science
59
Q - Science
24
G - Geography, Anthropology, Recreation
13
B - Philosophy, Psychology, Religion
11
D - World History
11
P - Language and Literature
11
E - United States History
10
J - Political Science
8
L - Education
5
F - General American History
4
Z - Library Science
4
N - Fine Arts
3
A - General Works
2
C - Historical Sciences
2
R - Medicine
2
K - Law
1