Dyfyniad APA

PORTER, M. E. (1980). Competitive Strategy Techniques For Analyzing Industies And Competitors Michael E. Porter. the Free Press.

Dyfyniad Arddull Chicago

PORTER, Michael E. Competitive Strategy Techniques For Analyzing Industies And Competitors Michael E. Porter. the Free Press, 1980.

Dyfyniad MLA

PORTER, Michael E. Competitive Strategy Techniques For Analyzing Industies And Competitors Michael E. Porter. the Free Press, 1980.

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