Número de Clasificación
M - Music
87
T - Technology
51
C - Historical Sciences
34
P - Language and Literature
18
A - General Works
10
G - Geography, Anthropology, Recreation
10
S - Agriculture
10
E - United States History
9
B - Philosophy, Psychology, Religion
7
R - Medicine
7
D - World History
4
H - Social Science
3
L - Education
3
F - General American History
2
J - Political Science
1
N - Fine Arts
1