Signum
D - World History
128
M - Music
42
P - Language and Literature
36
N - Fine Arts
19
B - Philosophy, Psychology, Religion
14
H - Social Science
11
A - General Works
6
Z - Library Science
6
C - Historical Sciences
1
F - General American History
1
G - Geography, Anthropology, Recreation
1
J - Political Science
1
Q - Science
1
R - Medicine
1
U - Military Science
1