Porter, M. E. (1990). The Competitive advantage of nations. Free Press.
Chicagoスタイル(17版)引用形式Porter, Michael E. The Competitive Advantage of Nations. New York: Free Press, 1990.
MLA(9版)引用形式Porter, Michael E. The Competitive Advantage of Nations. Free Press, 1990.
警告: この引用は必ずしも正確ではありません.