APA (7th ed.) Citation

Porter, M. E. (1990). The competitive advantage of nations. The Free Press.

Chicago Style (17th ed.) Citation

Porter, Michael E. The Competitive Advantage of Nations. New York: The Free Press, 1990.

MLA (8th ed.) Citation

Porter, Michael E. The Competitive Advantage of Nations. The Free Press, 1990.

Warning: These citations may not always be 100% accurate.