Classification
D - World History
24
F - General American History
21
H - Social Science
20
B - Philosophy, Psychology, Religion
6
P - Language and Literature
6
R - Medicine
6
G - Geography, Anthropology, Recreation
4
M - Music
4
J - Political Science
3
A - General Works
2
C - Historical Sciences
2
K - Law
1
N - Fine Arts
1
T - Technology
1