Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.