Gaya APA

Friedman, T, L. (2005). The World Is Flat: A Brief History of the Twenty-first Century . New York: Farrar, Straus and Giroux.

Gaya MLA

Friedman, Thomas, L.. "The World Is Flat: A Brief History of the Twenty-first Century". New York: Farrar, Straus and Giroux, 2005. Art Original.