索引号
H - Social Science
98
K - Law
52
L - Education
35
E - United States History
19
J - Political Science
11
P - Language and Literature
8
R - Medicine
8
Z - Library Science
8
A - General Works
6
Q - Science
5
U - Military Science
4
B - Philosophy, Psychology, Religion
3
D - World History
3
M - Music
3
N - Fine Arts
3
S - Agriculture
3
T - Technology
3
F - General American History
2
G - Geography, Anthropology, Recreation
2