Friedman. (2006). The world is flats: A globalized world in the twenty-first century (Updated and expanded.). Penguin Books.
Chicago Style (17th ed.) CitationFriedman. The World Is Flats: A Globalized World in the Twenty-first Century. Updated and expanded. London: Penguin Books, 2006.
MLA (8th ed.) CitationFriedman. The World Is Flats: A Globalized World in the Twenty-first Century. Updated and expanded. Penguin Books, 2006.
Warning: These citations may not always be 100% accurate.