APA (7th ed.) Citation

Ryan, F. (1997). Virus X: Tracking the new killer plagues : out of the present and into the future. Little, Brown.

Chicago Style (17th ed.) Citation

Ryan, Frank. Virus X: Tracking the New Killer Plagues : Out of the Present and into the Future. Boston: Little, Brown, 1997.

MLA (9th ed.) Citation

Ryan, Frank. Virus X: Tracking the New Killer Plagues : Out of the Present and into the Future. Little, Brown, 1997.