Scott T. Willard
发表
Alecsandro Dos Santos,
John D. Anderson,
Rhonda C. Vann,
2008,
Journal of Agricultural and Applied Economics.
Kifle G. Gebremedhin,
Scott T. Willard,
P. E. Hillman,
2009
.
Scott T. Willard,
P. E. Hillman,
C. N. Lee,
2005
.