Greenspan, A. (2007). The age of turbulence: Adventures in a new world. Penguin Press.
Chicago-Zitierstil (17. Ausg.)Greenspan, Alan. The Age of Turbulence: Adventures in a New World. New York: Penguin Press, 2007.
MLA-Zitierstil (9. Ausg.)Greenspan, Alan. The Age of Turbulence: Adventures in a New World. Penguin Press, 2007.