Classification
P - Language and Literature
316
D - World History
235
B - Philosophy, Psychology, Religion
208
Q - Science
103
N - Fine Arts
83
H - Social Science
74
K - Law
73
M - Music
69
J - Political Science
42
R - Medicine
33
A - General Works
32
G - Geography, Anthropology, Recreation
22
E - United States History
21
Z - Library Science
17
L - Education
12
T - Technology
11
C - Historical Sciences
8
S - Agriculture
7
U - Military Science
6
F - General American History
4