Classification
D - World History
503
P - Language and Literature
280
F - General American History
218
M - Music
198
H - Social Science
88
B - Philosophy, Psychology, Religion
81
K - Law
54
R - Medicine
51
N - Fine Arts
50
A - General Works
37
E - United States History
30
C - Historical Sciences
27
G - Geography, Anthropology, Recreation
18
J - Political Science
18
Z - Library Science
12
Q - Science
11
S - Agriculture
9
T - Technology
6
L - Education
5