United States. Environmental Protection Agency. Office of Water. (2002). Wastewater technology fact sheet: The living machine. U.S. Environmental Protection Agency, Office of Water.
Chicago Style (17th ed.) CitationUnited States. Environmental Protection Agency. Office of Water. Wastewater Technology Fact Sheet: The Living Machine. [Washington, D.C.]: U.S. Environmental Protection Agency, Office of Water, 2002.
MLA (9th ed.) CitationUnited States. Environmental Protection Agency. Office of Water. Wastewater Technology Fact Sheet: The Living Machine. U.S. Environmental Protection Agency, Office of Water, 2002.
Warning: These citations may not always be 100% accurate.