Signatura
Q - Science
49,608
G - Geography, Anthropology, Recreation
34,274
T - Technology
5,608
Z - Library Science
1,258
S - Agriculture
1,005
D - World History
729
F - General American History
709
A - General Works
525
U - Military Science
451
M - Music
320
H - Social Science
267
P - Language and Literature
240
C - Historical Sciences
236
L - Education
203
B - Philosophy, Psychology, Religion
175
E - United States History
171
N - Fine Arts
127
R - Medicine
105
K - Law
98
J - Political Science
74
V - Naval Science
33