APA Style

Levitt, S, D., Dubner, S, J. (2006). Freakonomics : A Roogue Economist Explores the Hidden Side of Everything (-). London: Penguin.

MLA Style

Levitt, Steven, D., Dubner, Stephen, J. "Freakonomics : A Roogue Economist Explores the Hidden Side of Everything". - London: Penguin, 2006. Printed Book.