Παραπομπή APA
(1991). Competitive strategies for the international hotel industry. New York, NY, USA: Economist Intelligence Unit.
Παραπομπή Chicago StyleCompetitive Strategies for the International Hotel Industry. New York, NY, USA: Economist Intelligence Unit, 1991.
Παραπομπή MLACompetitive Strategies for the International Hotel Industry. New York, NY, USA: Economist Intelligence Unit, 1991.
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