Cita APA (7a ed.)

Levitt, S. D., & Dubner, S. J. (2009). Freakonomics: A rogue economist explores the hidden side of everything (1st.). Harper Perennial.

Cita Chicago Style (17a ed.)

Levitt, Steven D., y Stephen J. Dubner. Freakonomics: A Rogue Economist Explores the Hidden Side of Everything. 1st. New York: Harper Perennial, 2009.

Cita MLA (9a ed.)

Levitt, Steven D., y Stephen J. Dubner. Freakonomics: A Rogue Economist Explores the Hidden Side of Everything. 1st. Harper Perennial, 2009.