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Citation
Smith, Allan E. and Brian J. Hayden. 1971. “Method for the Determination of 2, 4- Dichlorophenoxyacetic Acid Residues in Urine.” Special Collections, USDA National Agricultural Library. Accessed January 6, 2026, https://www.nal.usda.gov/exhibits/speccoll/items/show/2113.
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