索引號
P - Language and Literature
256
H - Social Science
48
F - General American History
41
D - World History
34
N - Fine Arts
22
B - Philosophy, Psychology, Religion
17
J - Political Science
11
L - Education
10
M - Music
3
Q - Science
3
G - Geography, Anthropology, Recreation
2
Z - Library Science
2
E - United States History
1
R - Medicine
1
S - Agriculture
1
U - Military Science
1