Cita APA (7th ed.)
Levitt, S. D., & Dubner, S. J. Superfreakonomics Global Cooling, Patriotic Prostitutes and Why Suicide Bombers Should Buy Life Insurance. Penguin.
Cita Chicago (17th ed.)
Levitt, Steven D., i Stephen J. Dubner. Superfreakonomics Global Cooling, Patriotic Prostitutes and Why Suicide Bombers Should Buy Life Insurance. Londres, Inglaterra: Penguin.
Cita MLA (9th ed.)
Levitt, Steven D., i Stephen J. Dubner. Superfreakonomics Global Cooling, Patriotic Prostitutes and Why Suicide Bombers Should Buy Life Insurance. Penguin.
Atenció: Aquestes cites poden no estar 100% correctes.