Número de Clasificación
M - Music
77
C - Historical Sciences
24
S - Agriculture
22
G - Geography, Anthropology, Recreation
8
A - General Works
7
P - Language and Literature
7
R - Medicine
6
B - Philosophy, Psychology, Religion
5
E - United States History
5
D - World History
3
T - Technology
3
F - General American History
2
H - Social Science
2
L - Education
2
J - Political Science
1
N - Fine Arts
1