Rydberg, P. A., & Shear, C. L. (1897). A report upon the grasses and forage plants of the Rocky Mountain region. U.S. Dept. of Agriculture, Division of Agrostology.
MLA CitationRydberg, Per Axel, and C. L. Shear. A Report upon the Grasses and Forage Plants of the Rocky Mountain Region. U.S. Dept. of Agriculture, Division of Agrostology, 1897.
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