索引號
H - Social Science
465
R - Medicine
54
B - Philosophy, Psychology, Religion
37
A - General Works
29
G - Geography, Anthropology, Recreation
28
D - World History
26
J - Political Science
21
Q - Science
21
L - Education
20
F - General American History
17
K - Law
14
E - United States History
11
P - Language and Literature
10
T - Technology
9
Z - Library Science
4
N - Fine Arts
3
C - Historical Sciences
2
S - Agriculture
2
M - Music
1