Signum
P - Language and Literature
48 098
B - Philosophy, Psychology, Religion
15 765
D - World History
10 238
M - Music
4 708
H - Social Science
1 514
K - Law
1 184
L - Education
919
R - Medicine
777
J - Political Science
648
Z - Library Science
646
A - General Works
403
G - Geography, Anthropology, Recreation
364
C - Historical Sciences
349
S - Agriculture
310
N - Fine Arts
269
Q - Science
195
T - Technology
193
U - Military Science
179
F - General American History
81
E - United States History
65
V - Naval Science
59