Classification
P - Language and Literature
11,624
B - Philosophy, Psychology, Religion
241
Q - Science
230
D - World History
116
A - General Works
60
R - Medicine
58
K - Law
20
J - Political Science
18
C - Historical Sciences
13
M - Music
8
G - Geography, Anthropology, Recreation
7
N - Fine Arts
7
H - Social Science
5
L - Education
4
S - Agriculture
4
F - General American History
2
Z - Library Science
2
T - Technology
1
U - Military Science
1