Greenspan, A. (2007). The Age of Turbulence. Princeton University Press.
Cita Chicago (17th ed.)Greenspan, Alan. The Age of Turbulence. New Jersey: Princeton University Press, 2007.
Cita MLA (9th ed.)Greenspan, Alan. The Age of Turbulence. Princeton University Press, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.