United States. Environmental Protection Agency. Office of Water. (1993). Subsurface flow constructed wetlands for wastewater treatment: A technology assessment. United States Environmental Protection Agency, Office of Water.
Chicago Style (17th ed.) CitationUnited States. Environmental Protection Agency. Office of Water. Subsurface Flow Constructed Wetlands for Wastewater Treatment: A Technology Assessment. [Washington, D.C.]: United States Environmental Protection Agency, Office of Water, 1993.
MLA (9th ed.) CitationUnited States. Environmental Protection Agency. Office of Water. Subsurface Flow Constructed Wetlands for Wastewater Treatment: A Technology Assessment. United States Environmental Protection Agency, Office of Water, 1993.
Warning: These citations may not always be 100% accurate.