Παραπομπή σε μορφή APA (7η εκδ.)

Porter, M. E. (1985). Competitive advantage: Creating and sustaining superior performance. Free Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Porter, Michael E. Competitive Advantage: Creating and Sustaining Superior Performance. New York: Free Press, 1985.

Παραπομπή σε μορφή MLA (8th εκδ.)

Porter, Michael E. Competitive Advantage: Creating and Sustaining Superior Performance. Free Press, 1985.