Klassifikationsnummer
B - Philosophy, Psychology, Religion
88
C - Historical Sciences
4
D - World History
31
E - United States History
70
F - General American History
31
G - Geography, Anthropology, Recreation
10
H - Social Science
33
J - Political Science
2
L - Education
3
M - Music
2
N - Fine Arts
5
P - Language and Literature
13
Q - Science
2
R - Medicine
1
T - Technology
2