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  1. Chemicals to kill weeds and diseases in tobacco beds /
    By: Clayton, Edward E - United States. - United States.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1945.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
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  2. Plant introductions.
    By: United States. - United States. - United States. - United States.
    Publication info: [Washington, D.C.] :Office of Foreign Seed and Plant Introduction, Bureau of Plant Industry, U.S. Dept. of Agriculture,[1922?-
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
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