Número de Clasificación
B - Philosophy, Psychology, Religion
22,600
Z - Library Science
528
P - Language and Literature
400
K - Law
387
D - World History
247
H - Social Science
242
M - Music
192
A - General Works
132
F - General American History
100
N - Fine Arts
85
J - Political Science
48
E - United States History
34
L - Education
34
Q - Science
23
C - Historical Sciences
20
G - Geography, Anthropology, Recreation
20
R - Medicine
15
S - Agriculture
10
U - Military Science
3
T - Technology
1