Citazione Stile APA (7a Edizione)

Greenspan, A. (2007). Age of turbulence: Adventures in a new world (NA.). Penguin Books.

Citazione stile Chigago Style (17a edizione)

Greenspan, Alan. Age of Turbulence: Adventures in a New World. NA. New York: Penguin Books, 2007.

Citatione MLA (9a ed.)

Greenspan, Alan. Age of Turbulence: Adventures in a New World. NA. Penguin Books, 2007.