Número de Clasificación
H - Social Science
1,224
K - Law
96
L - Education
35
J - Political Science
15
R - Medicine
15
T - Technology
11
B - Philosophy, Psychology, Religion
9
F - General American History
6
S - Agriculture
5
P - Language and Literature
4
Z - Library Science
3
G - Geography, Anthropology, Recreation
2
N - Fine Arts
2
C - Historical Sciences
1
D - World History
1
U - Military Science
1