Classification
M - Music
48
D - World History
40
H - Social Science
19
P - Language and Literature
19
B - Philosophy, Psychology, Religion
14
K - Law
13
L - Education
10
E - United States History
6
Z - Library Science
6
F - General American History
5
N - Fine Arts
5
S - Agriculture
4
A - General Works
3
G - Geography, Anthropology, Recreation
3
J - Political Science
3
C - Historical Sciences
2
T - Technology
2
Q - Science
1
R - Medicine
1