Ries, A., & Ries, L. (2002). The fall of advertising and the rise of PR. New York: HarperCollins.
Citación estilo ChicagoRies, Al, and Laura Ries. The Fall of Advertising and the Rise of PR. New York: HarperCollins, 2002.
Cita MLARies, Al, and Laura Ries. The Fall of Advertising and the Rise of PR. New York: HarperCollins, 2002.
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