APA (7th ed.) Citation

(2020). Air Quality Flag Program: Fact sheet. United States Environmental Protection Agency.

Chicago Style (17th ed.) Citation

Air Quality Flag Program: Fact Sheet. [Research Triangle Park, North Carolina]: United States Environmental Protection Agency, 2020.

MLA (9th ed.) Citation

Air Quality Flag Program: Fact Sheet. United States Environmental Protection Agency, 2020.

Warning: These citations may not always be 100% accurate.