Número de Clasificación
D - World History
475
P - Language and Literature
111
H - Social Science
96
B - Philosophy, Psychology, Religion
87
N - Fine Arts
85
J - Political Science
23
M - Music
20
T - Technology
12
C - Historical Sciences
10
K - Law
10
Z - Library Science
10
R - Medicine
8
U - Military Science
7
L - Education
5
G - Geography, Anthropology, Recreation
4
Q - Science
4
A - General Works
2
E - United States History
1