APA (7th ed.) Citation

United States. Environmental Protection Agency. Office of Air Quality Planning and Standards & United States. Environmental Protection Agency. Office of Air and Radiation. (1998). Latest findings on national air quality: 1997 status and trends. U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards.

Chicago Style (17th ed.) Citation

United States. Environmental Protection Agency. Office of Air Quality Planning and Standards and United States. Environmental Protection Agency. Office of Air and Radiation. Latest Findings on National Air Quality: 1997 Status and Trends. Research Triangle Park, NC: U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, 1998.

MLA (9th ed.) Citation

United States. Environmental Protection Agency. Office of Air Quality Planning and Standards and United States. Environmental Protection Agency. Office of Air and Radiation. Latest Findings on National Air Quality: 1997 Status and Trends. U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, 1998.