Número de Clasificación
B - Philosophy, Psychology, Religion
6,762
A - General Works
3,982
C - Historical Sciences
1,087
Z - Library Science
407
K - Law
367
D - World History
273
U - Military Science
65
M - Music
37
T - Technology
34
F - General American History
33
S - Agriculture
26
N - Fine Arts
19
L - Education
16
E - United States History
5
J - Political Science
3
H - Social Science
2
R - Medicine
2
P - Language and Literature
1