Greenspan, A. (2007). The age of turbulence: Adventures in a new world. Penguin Press.
芝加哥风格引文Greenspan, Alan. The Age of Turbulence: Adventures in a New World. New York: Penguin Press, 2007.
MLA引文Greenspan, Alan. The Age of Turbulence: Adventures in a New World. Penguin Press, 2007.
警告：这些引文格式不一定是100％准确.