Signum
H - Social Science
48
J - Political Science
33
Q - Science
32
A - General Works
13
K - Law
9
D - World History
8
P - Language and Literature
7
L - Education
6
U - Military Science
5
Z - Library Science
5
B - Philosophy, Psychology, Religion
4
G - Geography, Anthropology, Recreation
3
E - United States History
1
M - Music
1
R - Medicine
1