Klassifikationsnummer
H - Social Science
615
Q - Science
477
R - Medicine
452
L - Education
385
T - Technology
214
P - Language and Literature
174
B - Philosophy, Psychology, Religion
158
K - Law
114
G - Geography, Anthropology, Recreation
104
Z - Library Science
102
D - World History
75
S - Agriculture
67
J - Political Science
54
N - Fine Arts
50
M - Music
45
E - United States History
38
A - General Works
30
F - General American History
30
C - Historical Sciences
22
V - Naval Science
4
U - Military Science
3