Número de Clasificación
C - Historical Sciences
76
A - General Works
72
B - Philosophy, Psychology, Religion
68
M - Music
59
E - United States History
51
R - Medicine
21
N - Fine Arts
19
P - Language and Literature
19
T - Technology
14
K - Law
12
L - Education
8
S - Agriculture
8
H - Social Science
6
D - World History
5
Z - Library Science
2
J - Political Science
1
U - Military Science
1