Classification
E - United States History
520
P - Language and Literature
340
D - World History
91
M - Music
73
B - Philosophy, Psychology, Religion
44
H - Social Science
24
J - Political Science
16
N - Fine Arts
8
C - Historical Sciences
4
L - Education
4
A - General Works
3
G - Geography, Anthropology, Recreation
3
R - Medicine
3
Z - Library Science
3
K - Law
2
T - Technology
1