Klassifikationsnummer
E - United States History
2,418
D - World History
1,814
P - Language and Literature
1,222
H - Social Science
1,135
J - Political Science
1,052
N - Fine Arts
1,013
F - General American History
839
K - Law
544
B - Philosophy, Psychology, Religion
287
T - Technology
246
M - Music
203
G - Geography, Anthropology, Recreation
159
C - Historical Sciences
130
L - Education
69
R - Medicine
67
U - Military Science
64
Z - Library Science
60
Q - Science
45
S - Agriculture
30
A - General Works
15
V - Naval Science
7