Classification
R - Medicine
78
D - World History
38
B - Philosophy, Psychology, Religion
19
H - Social Science
8
A - General Works
4
C - Historical Sciences
3
Q - Science
3
J - Political Science
2
P - Language and Literature
2
Z - Library Science
2
F - General American History
1
G - Geography, Anthropology, Recreation
1
M - Music
1
N - Fine Arts
1
T - Technology
1
U - Military Science
1