Friedman, T. L. (2006). The world is flat: : a brief history of the twenty-first century (First updated and expanded edition, 2006.). New York: Farrar, Straus and Giroux.
Citación estilo ChicagoFriedman, Thomas L. The World Is Flat: : A Brief History of the Twenty-first Century. First updated and expanded edition, 2006. New York: Farrar, Straus and Giroux, 2006.
Cita MLAFriedman, Thomas L. The World Is Flat: : A Brief History of the Twenty-first Century. First updated and expanded edition, 2006. New York: Farrar, Straus and Giroux, 2006.
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