Número de Clasificación
H - Social Science
3,441
Q - Science
2,227
J - Political Science
1,621
S - Agriculture
1,250
Z - Library Science
710
T - Technology
620
G - Geography, Anthropology, Recreation
573
B - Philosophy, Psychology, Religion
326
L - Education
282
R - Medicine
278
P - Language and Literature
214
K - Law
199
F - General American History
101
D - World History
86
A - General Works
70
C - Historical Sciences
68
U - Military Science
59
N - Fine Arts
28
E - United States History
18
V - Naval Science
13
M - Music
6