索引號
D - World History
494
B - Philosophy, Psychology, Religion
73
J - Political Science
62
K - Law
34
H - Social Science
26
N - Fine Arts
16
P - Language and Literature
15
C - Historical Sciences
14
A - General Works
8
L - Education
4
M - Music
3
Z - Library Science
3
G - Geography, Anthropology, Recreation
2