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Dyfyniad Arddull ChicagoHAWKINS, Del I. Consumer Behavior: Building Marketing Strategy. McGraw-Hill.
Dyfyniad MLAHAWKINS, Del I. Consumer Behavior: Building Marketing Strategy. McGraw-Hill.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.