Número de Clasificación
H - Social Science
6,228
P - Language and Literature
3,629
R - Medicine
3,408
Q - Science
2,461
L - Education
2,414
T - Technology
2,248
B - Philosophy, Psychology, Religion
1,291
D - World History
1,099
K - Law
908
F - General American History
788
G - Geography, Anthropology, Recreation
662
A - General Works
552
J - Political Science
535
S - Agriculture
414
Z - Library Science
402
N - Fine Arts
334
E - United States History
192
M - Music
181
U - Military Science
120
C - Historical Sciences
118
V - Naval Science
33