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Citation
Nasu, Yutaka and Mamoru Kugimoto. 1981. “Lemna (Duckweed) as an Indicator of Water Pollution. I. The Sensitivity of Lemna paucicostata to Heavy Metals.” Special Collections, USDA National Agricultural Library. Accessed July 28, 2024, https://www.nal.usda.gov/exhibits/speccoll/items/show/5550.