Número de Clasificación
B - Philosophy, Psychology, Religion
703
A - General Works
488
E - United States History
120
C - Historical Sciences
84
T - Technology
29
M - Music
16
D - World History
14
K - Law
12
N - Fine Arts
8
Z - Library Science
7
P - Language and Literature
6
R - Medicine
3
S - Agriculture
3
J - Political Science
2
L - Education
2
F - General American History
1
H - Social Science
1