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Citation
Fletcher, W. W.. 1957. “The Effect of Soil-Applications of Certain Substituted Phenoxyacetic and Phenoxybutyric Acids on the Growth and Nodulation of Trifolium Repens Sylvestre.” Special Collections, USDA National Agricultural Library. Accessed November 1, 2024, https://www.nal.usda.gov/exhibits/speccoll/items/show/4235.