Klassifikationsnummer
P - Language and Literature
57
D - World History
26
H - Social Science
15
B - Philosophy, Psychology, Religion
6
Z - Library Science
6
C - Historical Sciences
4
J - Political Science
4
N - Fine Arts
2
R - Medicine
2
S - Agriculture
2
T - Technology
2
G - Geography, Anthropology, Recreation
1
K - Law
1