Biological control of the european corn borer in the United States
Baker, W.A., Bradley, W.G., Clark, C.A.
Biological control of the european corn borer in the United States - Washington 1949 - 1-185 p. - Biological, Corn, Borer United States Department of Agriculture. Technical Bulletin No. 983 .
Biological control of the european corn borer in the United States - Washington 1949 - 1-185 p. - Biological, Corn, Borer United States Department of Agriculture. Technical Bulletin No. 983 .