Número de Clasificación
F - General American History
1,522
N - Fine Arts
1,210
P - Language and Literature
1,147
E - United States History
996
H - Social Science
879
M - Music
400
G - Geography, Anthropology, Recreation
362
K - Law
338
Q - Science
327
B - Philosophy, Psychology, Religion
273
T - Technology
246
Z - Library Science
163
L - Education
129
J - Political Science
123
C - Historical Sciences
111
D - World History
103
R - Medicine
88
S - Agriculture
53
A - General Works
49
U - Military Science
34
V - Naval Science
4