Klassifikationsnummer
D - World History
20,732
U - Military Science
5,136
F - General American History
1,831
E - United States History
1,322
P - Language and Literature
636
Z - Library Science
632
A - General Works
295
H - Social Science
266
C - Historical Sciences
244
B - Philosophy, Psychology, Religion
217
N - Fine Arts
159
J - Political Science
153
V - Naval Science
106
G - Geography, Anthropology, Recreation
90
M - Music
75
K - Law
70
T - Technology
31
R - Medicine
25
L - Education
14
Q - Science
8
S - Agriculture
6