Número de Clasificación
M - Music
63
D - World History
9
F - General American History
8
C - Historical Sciences
7
S - Agriculture
6
B - Philosophy, Psychology, Religion
4
R - Medicine
4
E - United States History
3
G - Geography, Anthropology, Recreation
3
L - Education
2
N - Fine Arts
2
A - General Works
1
H - Social Science
1
P - Language and Literature
1
T - Technology
1
U - Military Science
1
V - Naval Science
1