索引號
H - Social Science
127
P - Language and Literature
42
L - Education
21
D - World History
20
K - Law
20
J - Political Science
15
B - Philosophy, Psychology, Religion
12
N - Fine Arts
7
R - Medicine
5
C - Historical Sciences
2
T - Technology
2
G - Geography, Anthropology, Recreation
1
M - Music
1
Q - Science
1
U - Military Science
1