索引号
N - Fine Arts
875
P - Language and Literature
657
L - Education
319
Z - Library Science
258
H - Social Science
164
B - Philosophy, Psychology, Religion
150
T - Technology
103
F - General American History
93
G - Geography, Anthropology, Recreation
70
R - Medicine
53
J - Political Science
49
Q - Science
45
C - Historical Sciences
38
A - General Works
33
K - Law
32
M - Music
31
D - World History
29
U - Military Science
28
S - Agriculture
18
E - United States History
9
V - Naval Science
1