Levitt, S. D., & Dubner, S. J. (2005). Freakonomics: A rogue economist explores the hidden side of everything (First edition & revised and expanded edition.). William Morrow.
Lua i Stíl Chicago (17ú heag.)Levitt, Steven D., agus Stephen J. Dubner. Freakonomics: A Rogue Economist Explores the Hidden Side of Everything. First edition & revised and expanded edition. New York: William Morrow, 2005.
Lua MLA (8ú heag.)Levitt, Steven D., agus Stephen J. Dubner. Freakonomics: A Rogue Economist Explores the Hidden Side of Everything. First edition & revised and expanded edition. William Morrow, 2005.
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