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Please read BHL's Acknowledgment of Harmful Content
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  1. By: United States. Agricultural Research Service. Crops Research Division. - United States. Plant Pest Control Division.
    Edition: Rev. [ed.]
    Publication info: [Washington, D.C.], U.S. Dept. of Agriculture, [1962]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Asiatic witchweed  North Carolina  Parasitic plants  South Carolina  
  2. By: United States. Agricultural Research Service. Crops Research Division. - United States. Plant Pest Control Division.
    Edition: Rev. [ed.]
    Publication info: [Washington, D.C.], U.S. Dept. of Agriculture, [1959]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Asiatic witchweed  North Carolina  Parasitic plants  South Carolina