Klassifikationsnummer
D - World History
691
P - Language and Literature
160
G - Geography, Anthropology, Recreation
85
M - Music
33
B - Philosophy, Psychology, Religion
21
E - United States History
21
F - General American History
18
N - Fine Arts
17
T - Technology
13
C - Historical Sciences
8
A - General Works
7
Q - Science
7
H - Social Science
6
Z - Library Science
5
J - Political Science
3
L - Education
3
S - Agriculture
2
R - Medicine
1
U - Military Science
1