Classification
P - Language and Literature
67
N - Fine Arts
26
D - World History
13
H - Social Science
13
M - Music
12
B - Philosophy, Psychology, Religion
11
Q - Science
9
F - General American History
7
K - Law
7
J - Political Science
5
A - General Works
2
C - Historical Sciences
2
R - Medicine
2
G - Geography, Anthropology, Recreation
1
S - Agriculture
1
T - Technology
1