Clements, F. E. 1. (1928). Rocky Mountain flowers: An illustrated guide for plant-lovers and plant-users (Third edition.). New York: The H. W. Wilson Company.
Styl ChicagoClements, Frederic E. 1874-1945. Rocky Mountain Flowers: An Illustrated Guide for Plant-lovers and Plant-users. Third edition. New York: The H. W. Wilson Company, 1928.
Citace podle MLAClements, Frederic E. 1874-1945. Rocky Mountain Flowers: An Illustrated Guide for Plant-lovers and Plant-users. Third edition. New York: The H. W. Wilson Company, 1928.
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