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  1. Agriculture : a text for the farm / by O.H. Benson and George Herbert Betts ; with illustrations, charts and diagrams.
    By: Benson, O. H. - Betts, George Herbert,
    Publication info: Indianapolis :The Bobbs-Merrill Co.,c1915.
    Contributed by: University of California Libraries (archive.org)
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  2. Agriculture : a text for the school and farm / by O.H. Benson and George Herbert Betts ; with illustrations, charts and diagrams.
    By: Benson, O. H. - Betts, George Herbert,
    Publication info: Indianapolis :The Bobbs-Merrill Co.,c1915.
    Contributed by: University of California Libraries (archive.org)
    View Book
  3. Agriculture and the farming business, by O.H. Benson ... and George Herbert Betts ... with illustrations, charts and diagrams.
    By: Benson, Oscar Herman, - Betts, George Herbert,
    Publication info: Indianapolis,The Bobbs-Merrill company[1917]
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
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  4. Agriculture; a text for the school and the farm, by O.H. Benson ... and George Herbert Betts ... with illustrations, charts and diagrams.
    By: Benson, Oscar Herman, - Betts, George Herbert,
    Publication info: Indianapolis,The Bobbs-Merrill company,1921.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
    View Book