Número de Clasificación
A - General Works
13
B - Philosophy, Psychology, Religion
19
C - Historical Sciences
8
D - World History
1
E - United States History
26
F - General American History
1
G - Geography, Anthropology, Recreation
3
J - Political Science
1
M - Music
34
P - Language and Literature
3
R - Medicine
2
S - Agriculture
5
T - Technology
1
Z - Library Science
3