Número de Clasificación
A - General Works
1,733
N - Fine Arts
678
H - Social Science
542
S - Agriculture
370
E - United States History
345
B - Philosophy, Psychology, Religion
200
M - Music
151
C - Historical Sciences
34
K - Law
32
P - Language and Literature
19
T - Technology
18
D - World History
10
V - Naval Science
7
R - Medicine
2
Z - Library Science
2
J - Political Science
1