Classification
D - World History
73
F - General American History
29
Z - Library Science
20
E - United States History
11
H - Social Science
11
A - General Works
5
K - Law
4
B - Philosophy, Psychology, Religion
3
G - Geography, Anthropology, Recreation
3
P - Language and Literature
3
J - Political Science
2
R - Medicine
2
M - Music
1