Número de Clasificación
A - General Works
7
B - Philosophy, Psychology, Religion
23
C - Historical Sciences
53
D - World History
2
E - United States History
54
F - General American History
2
H - Social Science
4
K - Law
1
L - Education
4
M - Music
26
N - Fine Arts
1
P - Language and Literature
19
Q - Science
4
R - Medicine
21
S - Agriculture
22
T - Technology
4
U - Military Science
1