APA (7th ed.) Citation

United States. Environmental Protection Agency. Office of Water. (1993). Natural wetlands for wastewater polishing: Houghton Lake, Michigan. United States Environmental Protection Agency, Office of Water.

Chicago Style (17th ed.) Citation

United States. Environmental Protection Agency. Office of Water. Natural Wetlands for Wastewater Polishing: Houghton Lake, Michigan. [Washington, D.C.]: United States Environmental Protection Agency, Office of Water, 1993.

MLA (9th ed.) Citation

United States. Environmental Protection Agency. Office of Water. Natural Wetlands for Wastewater Polishing: Houghton Lake, Michigan. United States Environmental Protection Agency, Office of Water, 1993.