APA (7th ed.) Citation
Friedman, T. L. (2006). <The> World is flat: <the> globalized world in the twenty-first century (updated and expanded.). Penguin Books.
Chicago Style (17th ed.) Citation
Friedman, Thomas L. <The> World Is Flat: <the> Globalized World in the Twenty-first Century. updated and expanded. London: Penguin Books, 2006.
MLA (9th ed.) Citation
Friedman, Thomas L. <The> World Is Flat: <the> Globalized World in the Twenty-first Century. updated and expanded. Penguin Books, 2006.
Warning: These citations may not always be 100% accurate.