索引號
B - Philosophy, Psychology, Religion
78
H - Social Science
16
R - Medicine
15
Q - Science
11
K - Law
9
P - Language and Literature
7
J - Political Science
6
A - General Works
5
D - World History
4
L - Education
4
C - Historical Sciences
2
G - Geography, Anthropology, Recreation
2
M - Music
1
N - Fine Arts
1
T - Technology
1