Número de Clasificación
E - United States History
106
C - Historical Sciences
43
R - Medicine
15
B - Philosophy, Psychology, Religion
8
F - General American History
7
S - Agriculture
7
P - Language and Literature
6
A - General Works
3
D - World History
3
G - Geography, Anthropology, Recreation
3
L - Education
2
K - Law
1
M - Music
1
N - Fine Arts
1
T - Technology
1
V - Naval Science
1