Número de Clasificación
H - Social Science
289
J - Political Science
41
G - Geography, Anthropology, Recreation
15
L - Education
10
C - Historical Sciences
8
P - Language and Literature
8
K - Law
7
B - Philosophy, Psychology, Religion
4
Q - Science
4
D - World History
3
S - Agriculture
3
T - Technology
3
F - General American History
2
R - Medicine
2
Z - Library Science
2
A - General Works
1
N - Fine Arts
1
V - Naval Science
1