Classification
H - Social Science
13
D - World History
5
J - Political Science
4
P - Language and Literature
4
B - Philosophy, Psychology, Religion
3
G - Geography, Anthropology, Recreation
2
Z - Library Science
2
A - General Works
1
E - United States History
1
K - Law
1
Q - Science
1
R - Medicine
1
S - Agriculture
1
T - Technology
1