Classification
D - World History
155
P - Language and Literature
98
M - Music
50
B - Philosophy, Psychology, Religion
19
A - General Works
13
H - Social Science
8
T - Technology
8
N - Fine Arts
7
F - General American History
6
R - Medicine
6
C - Historical Sciences
5
J - Political Science
4
K - Law
3
G - Geography, Anthropology, Recreation
2
Z - Library Science
2
E - United States History
1
L - Education
1
Q - Science
1
S - Agriculture
1