APA (7th ed.) Citation

Friedman, T. L. (2007). The world is flat: [a brief history of the twenty-first century] (Unabridged ; further updated and expanded.). Audio Renaissance.

Chicago Style (17th ed.) Citation

Friedman, Thomas L. The World Is Flat: [a Brief History of the Twenty-first Century]. Unabridged ; further updated and expanded. New York: Audio Renaissance, 2007.

MLA (9th ed.) Citation

Friedman, Thomas L. The World Is Flat: [a Brief History of the Twenty-first Century]. Unabridged ; further updated and expanded. Audio Renaissance, 2007.