APA (7th ed.) Citation

Barry, J. M. (2005). The great influenza: The epic story of the deadliest pandemic in history. Penguin.

Chicago Style (17th ed.) Citation

Barry, John M. The Great Influenza: The Epic Story of the Deadliest Pandemic in History. New York: Penguin, 2005.

MLA (8th ed.) Citation

Barry, John M. The Great Influenza: The Epic Story of the Deadliest Pandemic in History. Penguin, 2005.

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