Porter, M. E. (2004). Competitive Advantage: Creating and Sustaining Superior Performance. Free Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPorter, Michael E. Competitive Advantage: Creating and Sustaining Superior Performance. New York: Free Press, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPorter, Michael E. Competitive Advantage: Creating and Sustaining Superior Performance. Free Press, 2004.
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