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By: Walker, Robert J. - Dixon, H. Roberta. - Toth, Margo I. - Geological Survey (U.S.) - United States. Bureau of Land Management.Edition:Publication info: [Denver, Colo.], U.S. Department of the Interior, Geological Survey, 1983Volume:Series:Holding Institution: Bureau of Land ManagementSubjects:BHL Collections:
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By: Mcalpine, Donald F - Walker, Robert J.Type: ArticleIn: The Canadian field-naturalistVolume: 113Series:Issue: 2Date: 1999Page Range: 290--292Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: