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  1. Ferns and fern allies of Canada /
    By: Cody, William J.,
    Publication info: [Ottawa] :Research Branch, Agriculture Canada,1989.
    Contributed by: Agriculture and Agri-Food Canada (archive.org)
    Subjects: Canada  Ferns  Nomanclature  Nomenclature  Pteridophyta  
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  2. Les fougères et les plantes alliées du Canada /
    By: Cody, William J.,
    Publication info: [Ottawa] :Direction générale de la recherche, Agriculture Canada,1989.
    Contributed by: Agriculture and Agri-Food Canada (archive.org)
    Subjects: Canada  Ferns  Nomanclature  Nomenclature  Pteridophyta  
    View Book