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  1. A simple device for determining insect damage to seeds /
    By: Douglass, J. R. (James Robert) - Gibson, Kenneth E. (Kenneth Edward), - United States. Entomology Research Branch.
    Publication info: [Beltsville, Md.?] :U.S. Dept. of Agriculture, Agricultural Research Service,1956.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
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