Gerzema John. (2008). Brand Bubble: Looming Crisis in Brand Value. Jossey Bass.
Dyfyniad Arddull ChicagoGerzema John. Brand Bubble: Looming Crisis in Brand Value. New Jersey: Jossey Bass, 2008.
Dyfyniad MLAGerzema John. Brand Bubble: Looming Crisis in Brand Value. Jossey Bass, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.