Classification
P - Language and Literature
19
A - General Works
12
M - Music
11
S - Agriculture
5
N - Fine Arts
4
H - Social Science
3
B - Philosophy, Psychology, Religion
2
J - Political Science
2
T - Technology
2
C - Historical Sciences
1
D - World History
1
E - United States History
1
F - General American History
1
K - Law
1
Q - Science
1
R - Medicine
1