Citazione Stile APA (7a Edizione)

Porter, M. E. (1998). Competitive advantage: Creating and sustaining superior performance : with a new introduction. Free Press.

Citazione stile Chigago Style (17a edizione)

Porter, Michael E. Competitive Advantage: Creating and Sustaining Superior Performance : With a New Introduction. New York: Free Press, 1998.

Citatione MLA (9a ed.)

Porter, Michael E. Competitive Advantage: Creating and Sustaining Superior Performance : With a New Introduction. Free Press, 1998.