Cita APA

Friedman, T. L. (2007). The world is flat: A brief history of the twenty-first century. (futher updated and expanded.). New York: Farrar, Straus and Giroux.

Citación estilo Chicago

Friedman, Thomas Loren. The World Is Flat: A Brief History of the Twenty-first Century. futher updated and expanded. New York: Farrar, Straus and Giroux, 2007.

Cita MLA

Friedman, Thomas Loren. The World Is Flat: A Brief History of the Twenty-first Century. futher updated and expanded. New York: Farrar, Straus and Giroux, 2007.