Classification
M - Music
397
D - World History
369
Z - Library Science
118
F - General American History
91
E - United States History
84
J - Political Science
84
P - Language and Literature
75
A - General Works
27
B - Philosophy, Psychology, Religion
27
H - Social Science
27
K - Law
18
C - Historical Sciences
10
T - Technology
5
S - Agriculture
3
U - Military Science
2