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Promoting international tourism : how to increase the flow of foreign visitors to local areas
Harris, Godfrey, (1986)
Empfehlen Sie uns weiter! : Mundpropaganda als Marketinginstrument
Harris, Godfrey, (1999)
Don't take our word for it : everything you need to know about making word of mouth advertising work for you
Harris, Godfrey, (2000)