Classification
P - Language and Literature
11,781
Q - Science
278
A - General Works
155
K - Law
82
H - Social Science
67
B - Philosophy, Psychology, Religion
65
D - World History
60
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
C - Historical Sciences
2
F - General American History
2
U - Military Science
2