Klassifikationsnummer
P - Language and Literature
54
D - World History
38
H - Social Science
14
B - Philosophy, Psychology, Religion
12
J - Political Science
8
N - Fine Arts
8
C - Historical Sciences
4
K - Law
4
F - General American History
3
G - Geography, Anthropology, Recreation
3
Q - Science
2
Z - Library Science
2
L - Education
1
M - Music
1
S - Agriculture
1