Porter, M. E. (2004). Competitive Advantage: Creating and Sustaining Superior Performance. Free Press.
芝加哥风格引文Porter, Michael E. Competitive Advantage: Creating and Sustaining Superior Performance. New York: Free Press, 2004.
MLA引文Porter, Michael E. Competitive Advantage: Creating and Sustaining Superior Performance. Free Press, 2004.
警告：这些引文格式不一定是100％准确.