Classification
H - Social Science
154
M - Music
60
D - World History
28
S - Agriculture
22
P - Language and Literature
12
T - Technology
12
K - Law
10
Z - Library Science
10
A - General Works
8
B - Philosophy, Psychology, Religion
7
L - Education
7
C - Historical Sciences
6
E - United States History
6
J - Political Science
6
F - General American History
5
Q - Science
3
G - Geography, Anthropology, Recreation
2
N - Fine Arts
2
R - Medicine
1