Centers for Disease Control and Prevention (U.S.). (2009). H1N1 flu (swine flu). Centers for Disease Control and Prevention.
Chicago Style (17th ed.) CitationCenters for Disease Control and Prevention (U.S.). H1N1 Flu (swine Flu). Atlanta, GA: Centers for Disease Control and Prevention, 2009.
MLA (9th ed.) CitationCenters for Disease Control and Prevention (U.S.). H1N1 Flu (swine Flu). Centers for Disease Control and Prevention, 2009.
Warning: These citations may not always be 100% accurate.