Signatura
H - Social Science
262
F - General American History
48
C - Historical Sciences
44
L - Education
25
A - General Works
20
Q - Science
18
S - Agriculture
17
E - United States History
13
T - Technology
8
J - Political Science
7
R - Medicine
6
G - Geography, Anthropology, Recreation
4
P - Language and Literature
3
Z - Library Science
3
B - Philosophy, Psychology, Religion
2
N - Fine Arts
2
D - World History
1
M - Music
1