Classification
H - Social Science
134
M - Music
70
D - World History
38
L - Education
28
K - Law
20
J - Political Science
18
A - General Works
15
Q - Science
11
S - Agriculture
9
P - Language and Literature
5
B - Philosophy, Psychology, Religion
3
Z - Library Science
3
C - Historical Sciences
2
T - Technology
2
U - Military Science
2
E - United States History
1
F - General American History
1
V - Naval Science
1