APA (7th ed.) Citation

Porter. (1998). The competitive advantage of nations: With a new introduction. Free Press.

Chicago Style (17th ed.) Citation

Porter. The Competitive Advantage of Nations: With a New Introduction. New York: Free Press, 1998.

MLA (8th ed.) Citation

Porter. The Competitive Advantage of Nations: With a New Introduction. Free Press, 1998.

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