Classification
P - Language and Literature
8,766
H - Social Science
161
K - Law
128
B - Philosophy, Psychology, Religion
113
D - World History
83
Q - Science
68
A - General Works
66
N - Fine Arts
61
J - Political Science
57
L - Education
19
M - Music
16
G - Geography, Anthropology, Recreation
13
R - Medicine
12
T - Technology
8
U - Military Science
6
Z - Library Science
4
S - Agriculture
3
C - Historical Sciences
1
E - United States History
1
F - General American History
1