Número de Clasificación
C - Historical Sciences
357
M - Music
225
B - Philosophy, Psychology, Religion
13
S - Agriculture
13
F - General American History
10
E - United States History
7
G - Geography, Anthropology, Recreation
7
D - World History
6
P - Language and Literature
5
L - Education
4
R - Medicine
4
V - Naval Science
4
A - General Works
3
H - Social Science
3
K - Law
2
N - Fine Arts
2
T - Technology
2
U - Military Science
2
Z - Library Science
2
J - Political Science
1