Walker, J. R. (2015). Introduction to hospitality management. Pearson Prentice Hall.
Trích dẫn kiểu ChicagoWalker, John R. Introduction to Hospitality Management. Pearson Prentice Hall, 2015.
Deismireacht MLAWalker, John R. Introduction to Hospitality Management. Pearson Prentice Hall, 2015.
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