APA (7th ed.) Citation

Barry, J. M. (2009). The great influenza: The story of the deadliest pandemic in history (Ed. with new afterword.). Penguin Books.

Chicago Style (17th ed.) Citation

Barry, John M. The Great Influenza: The Story of the Deadliest Pandemic in History. Ed. with new afterword. New York: Penguin Books, 2009.

MLA (9th ed.) Citation

Barry, John M. The Great Influenza: The Story of the Deadliest Pandemic in History. Ed. with new afterword. Penguin Books, 2009.