APA (7th ed.) Citation
Porter, M. E. (1990). <The> Competitive Advantage of Nations (1. ed.). The Free Press.
Chicago Style (17th ed.) Citation
Porter, Michael E. <The> Competitive Advantage of Nations. 1. ed. New York: The Free Press, 1990.
MLA (9th ed.) Citation
Porter, Michael E. <The> Competitive Advantage of Nations. 1. ed. The Free Press, 1990.
Warning: These citations may not always be 100% accurate.