Locust Control in the Prairie Provinces [microform]Norman Criddle, Canada Division of EntomologyHäftad188 kr
Strawberry Root Weevil (Otiorhynchus Ovatus Linn.) in British Columbia [microform]R. C. (Reginald Charles) . Treherne, Canada Division of Entomology, Dominion Experimental Farms and StatiHäftad177 kr
Cabbage Root Maggot and Its Control in Canada [microform]Arthur 1875-1959 Gibson, R. C. (Reginald Charles) . Treherne, Canada Division of EntomologyHäftad177 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 EntomologyHäftad163 kr
Instructions to Importers of Trees, Plants and Other Nursery Stock Into Canada [microform]C. Gordon (Charles Gordon) . Hewitt, Canada Division of EntomologyHäftad163 kr
Honey Bee [microform]C. Gordon (Charles Gordon) . Hewitt, Canada Division of Entomology, Dominion Experimental Farms and StatiHäftad177 kr
Control of Locusts in Eastern Canada [microform]Arthur 1875-1959 Gibson, Canada Division of EntomologyHäftad159 kr
Applied Entomology in Canada [microform]C. Gordon (Charles Gordon) . Hewitt, Canada Division of EntomologyHäftad163 kr
Fruit Worms of the Apple in Nova Scotia [microform]G. E. Sanders, A. G. Dustan, Canada Division of EntomologyHäftad163 kr