Classification
H - Social Science
54
M - Music
37
S - Agriculture
19
D - World History
17
P - Language and Literature
8
J - Political Science
6
L - Education
6
B - Philosophy, Psychology, Religion
4
E - United States History
4
Z - Library Science
4
K - Law
3
N - Fine Arts
3
G - Geography, Anthropology, Recreation
2
T - Technology
2
A - General Works
1
C - Historical Sciences
1
F - General American History
1