Klassifikationsnummer
B - Philosophy, Psychology, Religion
2,028
E - United States History
21
P - Language and Literature
19
G - Geography, Anthropology, Recreation
11
A - General Works
10
L - Education
9
D - World History
7
N - Fine Arts
7
M - Music
6
F - General American History
5
C - Historical Sciences
3
H - Social Science
2
Z - Library Science
2