Número de Clasificación
P - Language and Literature
269
D - World History
39
F - General American History
28
H - Social Science
17
B - Philosophy, Psychology, Religion
16
Z - Library Science
10
C - Historical Sciences
5
N - Fine Arts
5
Q - Science
4
E - United States History
3
A - General Works
2
G - Geography, Anthropology, Recreation
2
K - Law
2
L - Education
2
J - Political Science
1
M - Music
1
R - Medicine
1