Cita APA (7a ed.)

Greenspan, A. (2008). The age of turbulence: Adventures in a new world. Penguin Books.

Cita Chicago Style (17a ed.)

Greenspan, Alan. The Age of Turbulence: Adventures in a New World. New York [etc.]: Penguin Books, 2008.

Cita MLA (9a ed.)

Greenspan, Alan. The Age of Turbulence: Adventures in a New World. Penguin Books, 2008.