United States. Government Accountability Office. (2009). Hazardous materials: EPA's assessment of sites that may have received asbestos-contaminated ore from Libby, Montana (GAO-09-7SP, March 2009), an e-supplement to GAO-09-6R. U.S. Govt. Accountability Office.
Chicago Style (17th ed.) CitationUnited States. Government Accountability Office. Hazardous Materials: EPA's Assessment of Sites That May Have Received Asbestos-contaminated Ore from Libby, Montana (GAO-09-7SP, March 2009), an E-supplement to GAO-09-6R. [Washington, D.C.]: U.S. Govt. Accountability Office, 2009.
MLA (9th ed.) CitationUnited States. Government Accountability Office. Hazardous Materials: EPA's Assessment of Sites That May Have Received Asbestos-contaminated Ore from Libby, Montana (GAO-09-7SP, March 2009), an E-supplement to GAO-09-6R. U.S. Govt. Accountability Office, 2009.