Número de Clasificación
U - Military Science
417
V - Naval Science
67
D - World History
27
E - United States History
24
T - Technology
23
H - Social Science
16
P - Language and Literature
11
B - Philosophy, Psychology, Religion
7
G - Geography, Anthropology, Recreation
7
Q - Science
7
C - Historical Sciences
6
F - General American History
5
M - Music
5
K - Law
3
L - Education
3
J - Political Science
2
R - Medicine
2
A - General Works
1
N - Fine Arts
1
S - Agriculture
1