C. Butler
发表
Maureen Caudill,
M. Caudill,
C. Butler,
1987
.
Charles W. Butler,
Maureen Caudill,
M. Caudill,
1990
.
Eric R. Ziegel,
M. Caudill,
C. Butler,
1980
.
Maureen Caudill,
Charles Butler,
M. Caudill,
1992
.