索引号
H - Social Science
325
R - Medicine
190
Q - Science
144
L - Education
91
T - Technology
86
P - Language and Literature
69
D - World History
55
A - General Works
47
K - Law
37
B - Philosophy, Psychology, Religion
33
G - Geography, Anthropology, Recreation
31
S - Agriculture
31
M - Music
22
N - Fine Arts
19
J - Political Science
14
E - United States History
11
Z - Library Science
11
F - General American History
7
C - Historical Sciences
4
U - Military Science
2