Klassifikationsnummer
D - World History
291
P - Language and Literature
102
H - Social Science
98
B - Philosophy, Psychology, Religion
66
L - Education
45
K - Law
43
J - Political Science
36
N - Fine Arts
18
R - Medicine
14
Z - Library Science
12
Q - Science
10
T - Technology
10
G - Geography, Anthropology, Recreation
9
F - General American History
8
M - Music
8
C - Historical Sciences
7
U - Military Science
5
V - Naval Science
4
S - Agriculture
2
A - General Works
1
E - United States History
1