Classification
M - Music
128
T - Technology
33
N - Fine Arts
15
B - Philosophy, Psychology, Religion
11
C - Historical Sciences
10
D - World History
9
Z - Library Science
9
R - Medicine
7
A - General Works
6
E - United States History
5
F - General American History
5
H - Social Science
5
S - Agriculture
4
P - Language and Literature
3
G - Geography, Anthropology, Recreation
2
K - Law
2
L - Education
2
Q - Science
1