Número de Clasificación
B - Philosophy, Psychology, Religion
66
C - Historical Sciences
63
A - General Works
39
M - Music
22
E - United States History
9
T - Technology
9
S - Agriculture
6
Z - Library Science
6
N - Fine Arts
5
P - Language and Literature
5
D - World History
4
G - Geography, Anthropology, Recreation
1
H - Social Science
1
J - Political Science
1
K - Law
1