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  1. By: Pinel, Harold W., - Wershler, Cleve. - Smith, Wayne W. - Provincial Museum of Alberta. Natural History Section. - Alberta. Alberta Culture and Multiculturalism.
    Publication info: Edmonton, Alta. :Natural History Section, Provincial Museum of Alberta,1991-
    Holding Institution: University of Alberta Libraries (archive.org)
  2. By: Wallis, Cliff. - Wershler, Cleve. - Alberta. Alberta Energy and Natural Resources. - Cottonwood Consultants Ltd.
    Publication info: Edmonton, Alta. :Alberta Energy and Natural Resources,1985.
    Holding Institution: University of Alberta Libraries (archive.org)
  3. By: Wallis, Cliff. - Wershler, Cleve. - Alberta. Alberta Environment. Natural Resources Service. - Cottonwood Consultants Ltd.
    Publication info: Calgary :Cottonwood Consultants Ltd.,2001.
    Holding Institution: University of Alberta Libraries (archive.org)