report on commercial insecticides and fungicides 1939

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Page 1: Report on Commercial Insecticides and Fungicides 1939
Page 2: Report on Commercial Insecticides and Fungicides 1939
Page 3: Report on Commercial Insecticides and Fungicides 1939
Page 4: Report on Commercial Insecticides and Fungicides 1939
Page 5: Report on Commercial Insecticides and Fungicides 1939
Page 6: Report on Commercial Insecticides and Fungicides 1939