Dyfyniad APA

Ries, A. (2004). 22 irrefutable laws of branding. Profile Books LTD.

Dyfyniad Arddull Chicago

Ries, Al. 22 Irrefutable Laws of Branding. Londan: Profile Books LTD, 2004.

Dyfyniad MLA

Ries, Al. 22 Irrefutable Laws of Branding. Profile Books LTD, 2004.

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