Signum
D - World History
4 224
P - Language and Literature
1 947
B - Philosophy, Psychology, Religion
832
H - Social Science
464
J - Political Science
289
N - Fine Arts
239
K - Law
110
Q - Science
88
C - Historical Sciences
84
M - Music
83
L - Education
81
G - Geography, Anthropology, Recreation
72
Z - Library Science
71
U - Military Science
44
T - Technology
41
R - Medicine
21
E - United States History
19
A - General Works
18
S - Agriculture
15
F - General American History
11
V - Naval Science
6