W R Barker
发表
W R Barker,
R C Gunkel,
1979
.
W R Barker,
W G Alexander,
1989
.
W R Barker,
1979
.
W R Barker,
L C Reese,
L. Reese,
1969
.
W R Barker,
P J Vedros,
1977
.
W R Barker,
Lymon C. Reese,
1970
.
W R Barker,
P J Vedros,
1977
.
Y T Chou,
W R Barker,
1980
.