Descrutive Insect and Pest Act and Regulations Issued Thereunder [microform]
C. Gordon (Charles Gordon) . Hewitt, Canada Division of Entomology, Dominion Experimental Farms and Stati
Häftad, 2021
161 kr
Applied Entomology in Canada [microform]
Its Rise and Progress
AvC. Gordon (Charles Gordon) . Hewitt,Canada Division of Entomology
Häftad, Engelska, 2021
161 kr
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Control of Insect Pests in Canada [microform]
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Instructions to Importers of Trees, Plants and Other Nursery Stock Into Canada [microform]
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Regulations Under the Destructive Insect and Pest Act, With Instructions to Importers and Exporters of Trees, Plants and Other Nursery Stock [microform]
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Review of Applied Entomology in the British Empire [microform]
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