索引号
H - Social Science
137
P - Language and Literature
84
F - General American History
51
R - Medicine
46
B - Philosophy, Psychology, Religion
41
Q - Science
41
L - Education
38
G - Geography, Anthropology, Recreation
35
K - Law
34
T - Technology
25
D - World History
24
A - General Works
21
J - Political Science
18
N - Fine Arts
17
S - Agriculture
17
Z - Library Science
13
E - United States History
8
C - Historical Sciences
5
M - Music
4
U - Military Science
1