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  1. The frog book : North American toads and frogs, with a study of the habits and life histories of those of the northeastern States / With over three hundred photographs from life by the author.
    By: Dickerson, Mary Cynthia,
    Publication info: New YorkDoubleday, Page1907
    Contributed by: Robarts - University of Toronto (archive.org)
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  2. The frog book; North American toads and frogs, with a study of the habits and life histories of those of the northeastern states. / With over three hundred photographs from life by the author. By Mary Cynthia Dickerson.
    By: Dickerson, Mary Cynthia,
    Publication info: New York ;Doubleday, Page,1907.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Libraries
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  3. The frog book; North American toads and frogs, with a study of the habits and life histories of those of the northeastern states.
    By: Dickerson, Mary Cynthia,
    Publication info: New York,Doubleday, Page & company,1906.
    Contributed by: MBLWHOI Library, Woods Hole
    BHL Collections: MBLWHOI Library, Woods Hole
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