Classification
P - Language and Literature
64
M - Music
57
D - World History
36
F - General American History
28
H - Social Science
24
C - Historical Sciences
15
B - Philosophy, Psychology, Religion
10
Q - Science
10
E - United States History
9
J - Political Science
7
K - Law
7
G - Geography, Anthropology, Recreation
5
L - Education
5
T - Technology
4
A - General Works
3
R - Medicine
3
S - Agriculture
2
Z - Library Science
1