Classification
P - Language and Literature
299
H - Social Science
101
K - Law
99
D - World History
85
Q - Science
40
J - Political Science
26
G - Geography, Anthropology, Recreation
14
N - Fine Arts
13
T - Technology
10
B - Philosophy, Psychology, Religion
9
S - Agriculture
8
L - Education
6
M - Music
5
R - Medicine
5
U - Military Science
5
A - General Works
2
C - Historical Sciences
1
F - General American History
1
Z - Library Science
1