Friedman, T. L. (2007). The world is flat: A brief history of the twenty-first century (first edition (2005).). Picador.
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. first edition (2005). New York: Picador, 2007.
MLA(8版)引用形式Friedman, Thomas L. The World Is Flat: A Brief History of the Twenty-first Century. first edition (2005). Picador, 2007.
警告: この引用は必ずしも正確ではありません.