Signatura
L - Education
740
H - Social Science
143
P - Language and Literature
111
K - Law
91
R - Medicine
51
J - Political Science
50
Q - Science
40
B - Philosophy, Psychology, Religion
35
D - World History
30
F - General American History
28
N - Fine Arts
26
T - Technology
20
G - Geography, Anthropology, Recreation
18
Z - Library Science
15
C - Historical Sciences
12
S - Agriculture
12
U - Military Science
4
E - United States History
2
A - General Works
1
M - Music
1