Studies of method and materials for the control of the leafhopper empoasc a Fabae as a bean pest
Delong, D.M.
Studies of method and materials for the control of the leafhopper empoasc a Fabae as a bean pest - Washington 1940 - 1-63 p. - Leafhooper United States Department of Agriculture. Technical Bulletin No. 740 .
Studies of method and materials for the control of the leafhopper empoasc a Fabae as a bean pest - Washington 1940 - 1-63 p. - Leafhooper United States Department of Agriculture. Technical Bulletin No. 740 .