Markel, H. (2004). When germs travel: Six major epidemics that have invaded America and the fears they have unleashed. Vintage Books.
Chicago Style (17th ed.) CitationMarkel, Howard. When Germs Travel: Six Major Epidemics That Have Invaded America and the Fears They Have Unleashed. New York: Vintage Books, 2004.
MLA (9th ed.) CitationMarkel, Howard. When Germs Travel: Six Major Epidemics That Have Invaded America and the Fears They Have Unleashed. Vintage Books, 2004.
Warning: These citations may not always be 100% accurate.