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  1. By: Johnston, Barry C. - Grand Mesa, Uncompahgre, and Gunnison National Forest (Agency : U.S.) - United States. Bureau of Land Management. Gunnison Resource Area. - Habitat Partnership Program (Colo.) - Colorado. Division of Wildlife. Gunnison District.
    Publication info: Gunnison, Colo, U.S. Department of Agriculture, Forest Service, Grand Mesa-Uncompahgre-Gunnison National Forests, 1997
    Holding Institution: Bureau of Land Management
  2. By: Alexander, Robert R. - Johnston, Barry C. - Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
    Publication info: Fort Collins, Colo, U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, [1988]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Johnston, Barry C. - United States. Forest Service. Rocky Mountain Region.
    Edition: Ed. 4.
    Publication info: Lakewood, Colo, USDA Forest Service, Rocky Mountain Region, [1987]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Weber, William A. (William Alfred), - Johnston, Barry C. - Wilken, Dieter H.
    Type: Article
    In: Phytologia
    Volume: 41
    Date: 1979
    Page Range: 486--498
    Publication Info: Bronx Park, New York H.A. Gleason and H.N. Moldenke
  2. By: Johnston, Barry C. - Ertter, Barbara Jean
    Type: Article
    In: Journal of the Botanical Research Institute of Texas
    Volume: 4
    Date: 2010
    Page Range: 13--18
    Publication Info: Fort Worth, Tex, Botanical Research Institute of Texas, 2007-
  3. By: Johnston, Barry C.
    Type: Article
    In: Phytologia
    Volume: 57
    Date: 1985
    Page Range: 292--302
    Publication Info: Bronx Park, New York H.A. Gleason and H.N. Moldenke