Classification
R - Medicine
301
D - World History
216
B - Philosophy, Psychology, Religion
202
Q - Science
50
T - Technology
26
P - Language and Literature
15
A - General Works
12
H - Social Science
11
C - Historical Sciences
5
J - Political Science
5
G - Geography, Anthropology, Recreation
4
E - United States History
2
N - Fine Arts
1
S - Agriculture
1