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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Himmelstein, F. J. - United States. Extension Service.
    Publication info: [United States], Cooperative Extension, [1996?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Corn  Herbicide resistance  Herbicide-resistant crops  Herbicides  Integrated control  New England  Weed control  Weeds
  2. By: Swanson, C. R. - Metabolism and Radiation Research Laboratory (Fargo, N. Dak.) - United States. Agricultural Research Service. Crops Research Division.
    Publication info: [Beltsville, Md.], U.S. Dept. of Agriculture, Agricultural Research Service, 1965
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Control  Herbicide resistance  Weeds