Número de Clasificación
B - Philosophy, Psychology, Religion
10,611
A - General Works
9,763
C - Historical Sciences
2,738
T - Technology
2,291
E - United States History
2,071
N - Fine Arts
1,685
K - Law
1,610
S - Agriculture
1,243
H - Social Science
774
M - Music
741
D - World History
619
Z - Library Science
522
P - Language and Literature
433
R - Medicine
197
F - General American History
84
U - Military Science
79
Q - Science
74
L - Education
64
V - Naval Science
20
J - Political Science
16
G - Geography, Anthropology, Recreation
7