Classification
P - Language and Literature
54
D - World History
29
H - Social Science
21
B - Philosophy, Psychology, Religion
18
K - Law
10
J - Political Science
6
L - Education
5
Z - Library Science
5
C - Historical Sciences
4
F - General American History
4
N - Fine Arts
4
A - General Works
3
E - United States History
3
G - Geography, Anthropology, Recreation
3
R - Medicine
3
T - Technology
2
V - Naval Science
2