Signatura
S - Agriculture
1,012
T - Technology
683
Q - Science
158
H - Social Science
141
A - General Works
112
L - Education
33
Z - Library Science
15
G - Geography, Anthropology, Recreation
14
N - Fine Arts
13
R - Medicine
12
B - Philosophy, Psychology, Religion
10
P - Language and Literature
9
J - Political Science
8
K - Law
7
F - General American History
3
M - Music
2
C - Historical Sciences
1
D - World History
1
U - Military Science
1