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Please read BHL's Acknowledgment of Harmful Content
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  1. By: DeVelice, Robert L. - Brown, Don L. - Montana Natural Heritage Program.
    Publication info: [Helena, Montana], [Montana Natural Heritage Program], [1992]
    Holding Institution: Montana State Library
  2. By: U.S. Fish and Wildlife Service - Brown, Don L. - Montana. Department of Fish, Wildlife, and Parks
    Publication info: [Denver, Colo.], The Service, [1982]
    Holding Institution: Montana State Library