Klassifikationsnummer
L - Education
1,119
S - Agriculture
646
T - Technology
310
A - General Works
184
Q - Science
180
F - General American History
149
R - Medicine
132
H - Social Science
131
P - Language and Literature
102
G - Geography, Anthropology, Recreation
54
K - Law
50
B - Philosophy, Psychology, Religion
37
J - Political Science
23
D - World History
16
Z - Library Science
16
N - Fine Arts
14
M - Music
12
E - United States History
7
C - Historical Sciences
4
U - Military Science
1