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By: Martin, Hubert. - Canada. Department of Agriculture. Science Service Laboratory (London, Ont.)Edition:Publication info: Ottawa, Science Service, Canada Dept. of Agriculture, 1957Volume:Series:Holding Institution: Agriculture and Agri-Food Canada (AAFC)Subjects: Agrochemicals Biochemistry Botany Ecology Plant ecologyBHL Collections:
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By: United States. Bureau of Entomology and Plant Quarantine.Edition:Publication info: [Place of publication not identified], 1935Volume: 1935Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Agrochemicals PesticidesBHL Collections: Seed & Nursery Catalogs