Hedrick, U. P. (1919). Sturtevant´s notes on edible plants (Primera edición.). Department of Agriculture.
Chicago Style aipamenaHedrick, Ulysses Prentiss. Sturtevant´s Notes on Edible Plants. Primera edición. New york: Department of Agriculture, 1919.
MLA aipamenaHedrick, Ulysses Prentiss. Sturtevant´s Notes on Edible Plants. Primera edición. Department of Agriculture, 1919.
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