Klassifikationsnummer
P - Language and Literature
15,775
D - World History
3,765
H - Social Science
3,466
N - Fine Arts
2,831
F - General American History
2,279
B - Philosophy, Psychology, Religion
2,159
E - United States History
2,056
M - Music
1,237
Z - Library Science
517
J - Political Science
507
T - Technology
422
G - Geography, Anthropology, Recreation
391
L - Education
389
R - Medicine
383
Q - Science
361
K - Law
282
A - General Works
218
C - Historical Sciences
195
U - Military Science
147
S - Agriculture
133
V - Naval Science
98