Murphy, D. (2019). Policy assessment for the review of the Ozone National Ambient Air Quality Standards: External review draft ([2019 edition].). U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Health and Environmental Impacts Division.
Chicago Style (17th ed.) CitationMurphy, Deirdre. Policy Assessment for the Review of the Ozone National Ambient Air Quality Standards: External Review Draft. [2019 edition]. Research Triangle Park, NC: U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Health and Environmental Impacts Division, 2019.
MLA (9th ed.) CitationMurphy, Deirdre. Policy Assessment for the Review of the Ozone National Ambient Air Quality Standards: External Review Draft. [2019 edition]. U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Health and Environmental Impacts Division, 2019.