Classification
H - Social Science
60
M - Music
38
S - Agriculture
23
D - World History
19
P - Language and Literature
9
C - Historical Sciences
7
E - United States History
7
J - Political Science
7
L - Education
6
B - Philosophy, Psychology, Religion
4
Z - Library Science
4
K - Law
3
N - Fine Arts
3
G - Geography, Anthropology, Recreation
2
T - Technology
2
A - General Works
1
F - General American History
1