APA (7th ed.) Citation

Zimbardo, P. G., & Boyd, J. (2009). The time paradox: The new psychology of time that can change your life. Free Press.

Chicago Style (17th ed.) Citation

Zimbardo, Philip G., and John Boyd. The Time Paradox: The New Psychology of Time That Can Change Your Life. New York: Free Press, 2009.

MLA (9th ed.) Citation

Zimbardo, Philip G., and John Boyd. The Time Paradox: The New Psychology of Time That Can Change Your Life. Free Press, 2009.