Número de Clasificación
P - Language and Literature
50
H - Social Science
49
J - Political Science
35
F - General American History
15
K - Law
11
G - Geography, Anthropology, Recreation
3
Q - Science
3
L - Education
2
R - Medicine
2
B - Philosophy, Psychology, Religion
1
C - Historical Sciences
1
D - World History
1
S - Agriculture
1
T - Technology
1