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  1. Principles of selective weed control /
    By: Ashton, Floyd M. - Foy, Chester L. - Harvey, W. A.
    Publication info: [Berkeley, Calif.] :Division of Agricultural Sciences, University of California,1961.
    Contributed by: University of California, Davis Libraries (archive.org)
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  2. Selective chemical weed control /
    By: Ashton, Floyd M. - Harvey, W. A.
    Publication info: [Berkeley, Calif.] :Division of Agricultural Sciences, University of California,1971.
    Contributed by: University of California, Davis Libraries (archive.org)
    View Book