Classification
P - Language and Literature
10,143
Q - Science
157
K - Law
97
B - Philosophy, Psychology, Religion
88
A - General Works
86
H - Social Science
74
D - World History
42
J - Political Science
31
M - Music
28
N - Fine Arts
24
R - Medicine
19
G - Geography, Anthropology, Recreation
13
L - Education
7
T - Technology
5
E - United States History
3
U - Military Science
3
C - Historical Sciences
2
S - Agriculture
1
Z - Library Science
1