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  1. The weed flora of Iowa
    By: Pammel, L. H. - Cunningham, Jules Cool, - Hayden, Ada, - Kellogg, Harriette Susan, - King, Charlotte M. - Martin, John N.
    Publication info: Des Moines,Iowa geological survey,1913.
    Contributed by: Cornell University Library
    View Book
  2. The weed flora of Iowa ...
    By: Pammel, L. H. - Cunningham, Jules Cool, - Hayden, Ada, - Kellogg, Harriette Susan, - King, Charlotte M, - Martin, John Nathan,
    Publication info: Des Moines,Iowa Geological Survey,1913.
    Contributed by: Library of Congress
    View Book