APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.