Signum
P - Language and Literature
92
H - Social Science
78
L - Education
31
R - Medicine
13
D - World History
11
T - Technology
11
K - Law
10
G - Geography, Anthropology, Recreation
8
Q - Science
8
Z - Library Science
6
N - Fine Arts
4
A - General Works
3
M - Music
3
S - Agriculture
2
U - Military Science
2
V - Naval Science
1