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Citation
Mullison, Wendell R.. 1951. “The Relative Herbicidal Effectiveness of Several Derivatives of 2,4 -Dichlorophenoxyacetic Acid and 2,4,5 -Trichlorophenoxyacetic Acid.” Special Collections, USDA National Agricultural Library. Accessed August 17, 2024, https://www.nal.usda.gov/exhibits/speccoll/items/show/4379.