Klassifikationsnummer
H - Social Science
4,574
R - Medicine
2,702
Q - Science
1,933
T - Technology
1,568
L - Education
1,294
P - Language and Literature
685
K - Law
509
B - Philosophy, Psychology, Religion
488
G - Geography, Anthropology, Recreation
397
D - World History
332
Z - Library Science
323
S - Agriculture
314
J - Political Science
219
A - General Works
171
N - Fine Arts
148
E - United States History
133
M - Music
123
F - General American History
96
U - Military Science
88
C - Historical Sciences
65
V - Naval Science
27