Klassifikationsnummer
Q - Science
26
D - World History
18
T - Technology
17
P - Language and Literature
16
A - General Works
11
G - Geography, Anthropology, Recreation
8
C - Historical Sciences
6
B - Philosophy, Psychology, Religion
5
Z - Library Science
5
E - United States History
4
F - General American History
4
N - Fine Arts
4
H - Social Science
3
M - Music
3
R - Medicine
3
U - Military Science
1