Signum
H - Social Science
17 104
P - Language and Literature
9 133
L - Education
7 311
R - Medicine
7 214
B - Philosophy, Psychology, Religion
6 945
Q - Science
6 899
K - Law
5 837
T - Technology
5 333
J - Political Science
3 621
S - Agriculture
3 566
G - Geography, Anthropology, Recreation
2 854
F - General American History
2 326
N - Fine Arts
1 746
D - World History
1 701
Z - Library Science
833
C - Historical Sciences
568
A - General Works
496
M - Music
415
E - United States History
203
U - Military Science
151
V - Naval Science
30