Classification
D - World History
350
P - Language and Literature
164
B - Philosophy, Psychology, Religion
98
H - Social Science
69
F - General American History
47
K - Law
42
M - Music
31
E - United States History
26
J - Political Science
26
C - Historical Sciences
21
N - Fine Arts
21
Z - Library Science
21
Q - Science
20
G - Geography, Anthropology, Recreation
16
L - Education
15
A - General Works
14
R - Medicine
13
T - Technology
7
S - Agriculture
6
V - Naval Science
3
U - Military Science
1