Classification
H - Social Science
26
D - World History
17
P - Language and Literature
13
B - Philosophy, Psychology, Religion
10
L - Education
9
G - Geography, Anthropology, Recreation
5
Z - Library Science
4
Q - Science
3
A - General Works
1
J - Political Science
1
K - Law
1
M - Music
1
N - Fine Arts
1
R - Medicine
1