Classification
P - Language and Literature
189
Q - Science
87
D - World History
36
H - Social Science
27
K - Law
18
B - Philosophy, Psychology, Religion
12
N - Fine Arts
10
G - Geography, Anthropology, Recreation
8
J - Political Science
8
T - Technology
5
F - General American History
4
R - Medicine
4
L - Education
3
Z - Library Science
3
A - General Works
2
S - Agriculture
2
M - Music
1