Classification
P - Language and Literature
48
M - Music
20
D - World History
16
B - Philosophy, Psychology, Religion
8
H - Social Science
8
K - Law
6
F - General American History
5
G - Geography, Anthropology, Recreation
5
Q - Science
5
T - Technology
5
J - Political Science
2
A - General Works
1
C - Historical Sciences
1
L - Education
1
S - Agriculture
1