Classification
D - World History
45
H - Social Science
31
M - Music
10
J - Political Science
7
P - Language and Literature
6
B - Philosophy, Psychology, Religion
5
G - Geography, Anthropology, Recreation
5
L - Education
3
K - Law
1
N - Fine Arts
1
R - Medicine
1
S - Agriculture
1
T - Technology
1
Z - Library Science
1