APA (7th ed.) Citation

Levitt, S. D., & Duvner, S. J. (2006). Freakonomics. B.

Chicago Style (17th ed.) Citation

Levitt, Steven D., and Sthepen J. Duvner. Freakonomics. Barcelona: B, 2006.

MLA (9th ed.) Citation

Levitt, Steven D., and Sthepen J. Duvner. Freakonomics. B, 2006.