Dyfyniad APA

Ries, A. (2004). The Fall of Advertising & The Rise of PR. Gramedia.

Dyfyniad Arddull Chicago

Ries, Al. The Fall of Advertising & The Rise of PR. Gramedia, 2004.

Dyfyniad MLA

Ries, Al. The Fall of Advertising & The Rise of PR. Gramedia, 2004.

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