APA (7th ed.) Citation

(2013). Air quality and outdoor activity guidance for schools. U.S. Environmental Protection Agency, Department of Health and Human Services, Centers for Disease Control and Prevention.

Chicago Style (17th ed.) Citation

Air Quality and Outdoor Activity Guidance for Schools. [Research Triangle Park, N.C.]: U.S. Environmental Protection Agency, Department of Health and Human Services, Centers for Disease Control and Prevention, 2013.

MLA (9th ed.) Citation

Air Quality and Outdoor Activity Guidance for Schools. U.S. Environmental Protection Agency, Department of Health and Human Services, Centers for Disease Control and Prevention, 2013.