Classification
P - Language and Literature
63
G - Geography, Anthropology, Recreation
46
M - Music
38
D - World History
36
B - Philosophy, Psychology, Religion
10
F - General American History
9
H - Social Science
6
E - United States History
4
A - General Works
3
C - Historical Sciences
3
R - Medicine
2
N - Fine Arts
1
Z - Library Science
1