APA (7th ed.) Citation

Levitt, S. D. (2009). Freakonomics. HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Levitt, Steven D. Freakonomics. HarperCollins Publishers, 2009.

MLA (8th ed.) Citation

Levitt, Steven D. Freakonomics. HarperCollins Publishers, 2009.

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