APA-viite

Levitt, S. D., & Dubner, S. J. (2005). Freakonomics: A rogue economist explores the hidden of everything. William Morrow.

Chicago-tyylinen lähdeviittaus

Levitt, Steven D., ja Stephen J. Dubner. Freakonomics: A Rogue Economist Explores the Hidden of Everything. New York: William Morrow, 2005.

MLA-viite

Levitt, Steven D., ja Stephen J. Dubner. Freakonomics: A Rogue Economist Explores the Hidden of Everything. William Morrow, 2005.