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  1. By: Comer, Patrick, - Allen, Lorna, - Cooper, Stephen V. - Faber-Langendoen, Don, - Jones, George P. - Nature Conservancy. - Montana Natural Heritage Program. - Wyoming Natural Diversity Database. - Natural Heritage Planning and Evaluation.
    Publication info: Nature Conservancy, 1999
    Holding Institution: Montana State Library
  1. By: Faber-Langendoen, Don, - Maycock, Paul F
    Type: Article
    In: The Canadian field-naturalist
    Volume: 103
    Issue: 4
    Date: 1989
    Page Range: 479--485
    Publication Info: Ottawa Ottawa Field-Naturalists' Club