Gaya APA

Levitt, S, D. (2009). Super Freakonomics Global Cooling, Patriotic Prostitutes and why Suicide Bombers Should Buy Life Insurance . uNY: harper collins publishers.

Gaya MLA

Levitt, Steven, D.. "Super Freakonomics Global Cooling, Patriotic Prostitutes and why Suicide Bombers Should Buy Life Insurance". uNY: harper collins publishers, 2009. Art Original.