United States. Environmental Protection Agency. Office of Pollution Prevention and Toxics & Abt Associates. (2009). Risk screening environmental indicators (Version 2.2.0.). U.S. Environmental Protection Agency.
Chicago Style (17th ed.) CitationUnited States. Environmental Protection Agency. Office of Pollution Prevention and Toxics and Abt Associates. Risk Screening Environmental Indicators. Version 2.2.0. Washington, DC: U.S. Environmental Protection Agency, 2009.
MLA (9th ed.) CitationUnited States. Environmental Protection Agency. Office of Pollution Prevention and Toxics and Abt Associates. Risk Screening Environmental Indicators. Version 2.2.0. U.S. Environmental Protection Agency, 2009.
Warning: These citations may not always be 100% accurate.