Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Warning: These citations may not always be 100% accurate.