Signum
H - Social Science
57
D - World History
21
J - Political Science
11
R - Medicine
11
K - Law
6
G - Geography, Anthropology, Recreation
5
P - Language and Literature
5
L - Education
4
S - Agriculture
4
T - Technology
4
Q - Science
3
U - Military Science
3
B - Philosophy, Psychology, Religion
2
Z - Library Science
2
A - General Works
1
C - Historical Sciences
1