Siguaw, J. A. (2004). Hospitality salesSelling smarter. Thomson-Delmar Learning.
Chicago Style (17. basım) AtıfSiguaw, Judy A. Hospitality SalesSelling Smarter. Thomson-Delmar Learning, 2004.
MLA (8th ed.) AtıfSiguaw, Judy A. Hospitality SalesSelling Smarter. Thomson-Delmar Learning, 2004.
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