Washington (State). Department of Ecology. (2001). An aquatic plant identification manual for Washington's freshwater plants. The Dept..
Cita Chicago Style (17a ed.)Washington (State). Department of Ecology. An Aquatic Plant Identification Manual for Washington's Freshwater Plants. [Olympia, Wash.]: The Dept., 2001.
Cita MLA (8a ed.)Washington (State). Department of Ecology. An Aquatic Plant Identification Manual for Washington's Freshwater Plants. The Dept., 2001.
Precaución: Estas citas no son 100% exactas.