APA (7th ed.) Citation

Friedman, T. L. (2006). The world is flat: A brief history of the twenty-first century (1. updat. and expand. ed.). Farrar, Straus and Giroux.

Chicago Style (17th ed.) Citation

Friedman, Thomas L. The World Is Flat: A Brief History of the Twenty-first Century. 1. updat. and expand. ed. New York: Farrar, Straus and Giroux, 2006.

MLA (8th ed.) Citation

Friedman, Thomas L. The World Is Flat: A Brief History of the Twenty-first Century. 1. updat. and expand. ed. Farrar, Straus and Giroux, 2006.