United States. Environmental Protection Agency. Office of the Inspector General. (1999). Water: Colorado water quality standards, monitoring, and reporting program. United States Environmental Protection Agency, Office of Inspector General.
Chicago Style (17th ed.) CitationUnited States. Environmental Protection Agency. Office of the Inspector General. Water: Colorado Water Quality Standards, Monitoring, and Reporting Program. [Washington, D.C.]: United States Environmental Protection Agency, Office of Inspector General, 1999.
MLA (9th ed.) CitationUnited States. Environmental Protection Agency. Office of the Inspector General. Water: Colorado Water Quality Standards, Monitoring, and Reporting Program. United States Environmental Protection Agency, Office of Inspector General, 1999.