Classification
P - Language and Literature
11,771
Q - Science
278
A - General Works
155
K - Law
80
H - Social Science
67
B - Philosophy, Psychology, Religion
63
D - World History
59
S - Agriculture
34
J - Political Science
19
G - Geography, Anthropology, Recreation
15
N - Fine Arts
13
T - Technology
11
R - Medicine
9
L - Education
6
M - Music
6
Z - Library Science
5
F - General American History
2
U - Military Science
2
C - Historical Sciences
1