Classification
C - Historical Sciences
11
M - Music
7
B - Philosophy, Psychology, Religion
5
L - Education
4
H - Social Science
3
Q - Science
3
D - World History
2
A - General Works
1
E - United States History
1
F - General American History
1
N - Fine Arts
1
P - Language and Literature
1
R - Medicine
1
T - Technology
1