Classification
M - Music
661
P - Language and Literature
59
D - World History
47
B - Philosophy, Psychology, Religion
42
R - Medicine
24
Q - Science
13
H - Social Science
6
C - Historical Sciences
5
G - Geography, Anthropology, Recreation
4
T - Technology
3
U - Military Science
3
J - Political Science
2
N - Fine Arts
2
F - General American History
1
K - Law
1
L - Education
1
Z - Library Science
1