Washington (State). Department of Ecology. (2001). An aquatic plant identification manual for Washington's freshwater plants. The Dept..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington (State). Department of Ecology. An Aquatic Plant Identification Manual for Washington's Freshwater Plants. [Olympia, Wash.]: The Dept., 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington (State). Department of Ecology. An Aquatic Plant Identification Manual for Washington's Freshwater Plants. The Dept., 2001.
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