APA (7th ed.) Citation

Ryan, F. (1996). Virus X: Understanding the real threat of the new pandemic plagues. HarperCollins.

Chicago Style (17th ed.) Citation

Ryan, Frank. Virus X: Understanding the Real Threat of the New Pandemic Plagues. London: HarperCollins, 1996.

MLA (9th ed.) Citation

Ryan, Frank. Virus X: Understanding the Real Threat of the New Pandemic Plagues. HarperCollins, 1996.

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