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  1. By: Dusek, Gary L. - McCann, Steven A. - Consolidation Coal Company. - Montana. Department of Fish and Game. Environment and Information Division
    Publication info: [S.l. :s.n.],1974.
    Holding Institution: Montana State Library (archive.org)
  2. By: Dusek, Gary L. - McCann, Steven A. - Consolidation Coal Company. - Montana. Department of Fish and Game. Environment and Information Division
    Publication info: [s.l. :s.n.],1975.
    Holding Institution: Montana State Library (archive.org)