索引号
D - World History
448
H - Social Science
188
P - Language and Literature
124
B - Philosophy, Psychology, Religion
68
K - Law
65
L - Education
60
J - Political Science
53
N - Fine Arts
37
T - Technology
28
G - Geography, Anthropology, Recreation
27
R - Medicine
23
Q - Science
22
Z - Library Science
22
F - General American History
21
C - Historical Sciences
17
U - Military Science
7
M - Music
6
S - Agriculture
4
V - Naval Science
4
E - United States History
3
A - General Works
2