Παραπομπή σε μορφή APA (7η εκδ.)

(1991). Strategy Seeking And Securing Competitive Advantage Edited With An Introduction By Cynthia A. Montgomery And Michael E. Porter. Harvard Business School.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Strategy Seeking And Securing Competitive Advantage Edited With An Introduction By Cynthia A. Montgomery And Michael E. Porter. Harvard Business School, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

Strategy Seeking And Securing Competitive Advantage Edited With An Introduction By Cynthia A. Montgomery And Michael E. Porter. Harvard Business School, 1991.