索引号
D - World History
58
H - Social Science
11
J - Political Science
7
P - Language and Literature
7
G - Geography, Anthropology, Recreation
4
N - Fine Arts
4
B - Philosophy, Psychology, Religion
3
F - General American History
2
Q - Science
2
C - Historical Sciences
1
L - Education
1
U - Military Science
1
Z - Library Science
1