APA (7th ed.) Citation

(2014). Air quality and outdoor activity guidance for schools. U.S. Environmental Protection Agency ; Department of Health and Human Services USA, Centers for Disease Control and Prevention : School Flag Program.

Chicago Style (17th ed.) Citation

Air Quality and Outdoor Activity Guidance for Schools. [Research Triangle Park, N.C.] : [Atlanta, GA]: U.S. Environmental Protection Agency ; Department of Health and Human Services USA, Centers for Disease Control and Prevention : School Flag Program, 2014.

MLA (9th ed.) Citation

Air Quality and Outdoor Activity Guidance for Schools. U.S. Environmental Protection Agency ; Department of Health and Human Services USA, Centers for Disease Control and Prevention : School Flag Program, 2014.