Insecticide recommendations of the Entomology Research Division for the control
United States Department of Agriculture
Insecticide recommendations of the Entomology Research Division for the control - Washington 1957 - 109 p. - No. 120; United States Depart .
632.7:632.951
Insecticide recommendations of the Entomology Research Division for the control - Washington 1957 - 109 p. - No. 120; United States Depart .
632.7:632.951