Klassifikationsnummer
D - World History
111
H - Social Science
32
K - Law
24
P - Language and Literature
17
B - Philosophy, Psychology, Religion
13
R - Medicine
13
J - Political Science
10
L - Education
10
N - Fine Arts
10
C - Historical Sciences
7
G - Geography, Anthropology, Recreation
7
Q - Science
7
T - Technology
5
Z - Library Science
3
E - United States History
2
F - General American History
2
M - Music
2
U - Military Science
1