Friedman, T. L. (2006). The world is flat: A brief history of the twenty-first century (Updated and expanded.). Farrar, Strauss and Giroux.
Chicagoスタイル(17版)引用形式Friedman, Thomas L. The World Is Flat: A Brief History of the Twenty-first Century. Updated and expanded. New York: Farrar, Strauss and Giroux, 2006.
MLA(9版)引用形式Friedman, Thomas L. The World Is Flat: A Brief History of the Twenty-first Century. Updated and expanded. Farrar, Strauss and Giroux, 2006.
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