Cita APA (7th ed.)

Porter, M. E. (1998). The Competitive Advantage of Nations. Palgrave.

Cita Chicago (17th ed.)

Porter, Michael E. The Competitive Advantage of Nations. New York: Palgrave, 1998.

Cita MLA (9th ed.)

Porter, Michael E. The Competitive Advantage of Nations. Palgrave, 1998.

Atenció: Aquestes cites poden no estar 100% correctes.