Citazione Stile APA (7a Edizione)

Porter, M. E. (2004). Competitive Advantage: Creating and Sustaining Superior Performance. Free Press.

Citazione stile Chigago Style (17a edizione)

Porter, Michael E. Competitive Advantage: Creating and Sustaining Superior Performance. New York: Free Press, 2004.

Citatione MLA (9a ed.)

Porter, Michael E. Competitive Advantage: Creating and Sustaining Superior Performance. Free Press, 2004.