Hooley, G. J., & Savnders, J. (1993). Competitive Positioning: The key to market success. Prentic hall.
Dyfyniad Arddull ChicagoHooley, Graham J., and John Savnders. Competitive Positioning: The Key to Market Success. New York: Prentic hall, 1993.
Dyfyniad MLAHooley, Graham J., and John Savnders. Competitive Positioning: The Key to Market Success. Prentic hall, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.