United States. Environmental Protection Agency. Indoor Environmental Division. (2005). A citizen's guide to Radon: The guide to protecting yourself and your family from Radon (Revised.). United States Environmental Protection Agency, Indoor Environments Division.
Chicago Style (17th ed.) CitationUnited States. Environmental Protection Agency. Indoor Environmental Division. A Citizen's Guide to Radon: The Guide to Protecting Yourself and Your Family from Radon. Revised. [Washington, D.C.]: United States Environmental Protection Agency, Indoor Environments Division, 2005.
MLA (9th ed.) CitationUnited States. Environmental Protection Agency. Indoor Environmental Division. A Citizen's Guide to Radon: The Guide to Protecting Yourself and Your Family from Radon. Revised. United States Environmental Protection Agency, Indoor Environments Division, 2005.