(1991). Strategy: Seeking and Securing Competitive Advantage. Boston: Harvard Business School Press.
استشهاد بنمط شيكاغوStrategy: Seeking and Securing Competitive Advantage. Boston: Harvard Business School Press, 1991.
MLA استشهادStrategy: Seeking and Securing Competitive Advantage. Boston: Harvard Business School Press, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.