Cita APA (7th ed.)

Levitt, S. D. (2005). Freakonomics: A rouge economist explores the hidden side of everything. Penguin Group.

Cita Chicago (17th ed.)

Levitt, Steven D. Freakonomics: A Rouge Economist Explores the Hidden Side of Everything. New York: Penguin Group, 2005.

Cita MLA (9th ed.)

Levitt, Steven D. Freakonomics: A Rouge Economist Explores the Hidden Side of Everything. Penguin Group, 2005.