European corn borer and its controlling factors in the orient
Clark, C.A.
European corn borer and its controlling factors in the orient - Washington 1934 - 1-37 p. - Corn, United States Department of Agriculture. Technical Bulletin No. 455 .
European corn borer and its controlling factors in the orient - Washington 1934 - 1-37 p. - Corn, United States Department of Agriculture. Technical Bulletin No. 455 .