Greenspan, A. (2007). The age of turbulence: Adventures in a new world. Penguin Press.
Style de citation Chicago (17e éd.)Greenspan, Alan. The Age of Turbulence: Adventures in a New World. New York: Penguin Press, 2007.
Style de citation MLA (9e éd.)Greenspan, Alan. The Age of Turbulence: Adventures in a New World. Penguin Press, 2007.