Cutworms and Their Control [microform]Arthur 1875-1959 Gibson, R. C. (Reginald Charles) . Treherne, Canada Division of EntomologyHäftad, 2021168 kr
Control of Locusts in Eastern Canada [microform]Arthur 1875-1959 Gibson, Canada Division of EntomologyHäftad, 2021163 kr
Boring Caterpillars Affecting Corn and Other Crops and Which Are Liable to Be Mistaken for the European Corn Borer [microform]Arthur 1875-1959 Gibson, Canada Division of EntomologyHäftad, 2021168 kr
Cutworms and Army-worms [microform]Arthur 1875-1959 Gibson, Canada Division of Entomology, Dominion Experimental Farms and StatiHäftad, 2021166 kr
Strawberry Root Weevil (Otiorhynchus Ovatus Linn.) in British Columbia [microform]R. C. (Reginald Charles) . Treherne, Canada Division of Entomology, Dominion Experimental Farms and StatiHäftad, 2021182 kr
Boring Caterpillars Affecting Corn and Other Crops and Which Are Liable to Be Mistaken for the European Corn Borer [microform]Arthur 1875-1959 Gibson, Canada Division of EntomologyHäftad, 2021168 kr
Control of Locusts in Eastern Canada [microform]Arthur 1875-1959 Gibson, Canada Division of EntomologyHäftad, 2021163 kr
Cutworms and Their Control [microform]Arthur 1875-1959 Gibson, R. C. (Reginald Charles) . Treherne, Canada Division of EntomologyHäftad, 2021168 kr
Cutworms and Army-worms [microform]Arthur 1875-1959 Gibson, Canada Division of Entomology, Dominion Experimental Farms and StatiHäftad, 2021166 kr
Insects Economically Important in the Lower Fraser Valley [microform]R. C. (Reginald Charles) . TreherneHäftad, 2021168 kr
Army Cutworm [microform]E. H. (Edgar Harold) B. Strickland, Canada Division of EntomologyHäftad, 2021168 kr
Instructions to Importers of Trees, Plants and Other Nursery Stock Into Canada [microform]C. Gordon (Charles Gordon) . Hewitt, Canada Division of EntomologyHäftad, 2021168 kr