Klassifikationsnummer
E - United States History
235
P - Language and Literature
85
F - General American History
57
Z - Library Science
24
H - Social Science
21
D - World History
14
B - Philosophy, Psychology, Religion
11
G - Geography, Anthropology, Recreation
10
M - Music
6
J - Political Science
5
A - General Works
4
R - Medicine
3
U - Military Science
3
C - Historical Sciences
2
T - Technology
1
V - Naval Science
1