Klassifikationsnummer
P - Language and Literature
93,310
D - World History
54,174
H - Social Science
33,738
B - Philosophy, Psychology, Religion
22,196
N - Fine Arts
11,852
K - Law
7,858
J - Political Science
7,010
A - General Works
7,008
G - Geography, Anthropology, Recreation
6,872
L - Education
6,617
M - Music
4,514
T - Technology
3,665
R - Medicine
3,024
Z - Library Science
3,016
C - Historical Sciences
2,809
Q - Science
2,242
U - Military Science
1,651
S - Agriculture
1,204
E - United States History
850
V - Naval Science
270
F - General American History
219