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Dyfyniad Arddull ChicagoFortner, Robert S. International Communication: History, Conflict and Control of the Global Metropolis. California: Wadsworth, 1993.
Dyfyniad MLAFortner, Robert S. International Communication: History, Conflict and Control of the Global Metropolis. Wadsworth, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.