Número de Clasificación
B - Philosophy, Psychology, Religion
70
C - Historical Sciences
67
A - General Works
39
M - Music
25
T - Technology
17
E - United States History
14
S - Agriculture
11
H - Social Science
8
P - Language and Literature
7
Z - Library Science
6
N - Fine Arts
5
D - World History
4
G - Geography, Anthropology, Recreation
2
J - Political Science
1
K - Law
1
V - Naval Science
1