Walker, J. R., & John R. Walker. (2010). Introduction to hospitality management. Upper Saddle River: Pearson,Prentice Hall.
Trích dẫn kiểu ChicagoWalker, John R., và John R. Walker. Introduction to Hospitality Management. Upper Saddle River: Pearson,Prentice Hall, 2010.
Deismireacht MLAWalker, John R., và John R. Walker. Introduction to Hospitality Management. Upper Saddle River: Pearson,Prentice Hall, 2010.
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