WALKER, J. R. (2017). Introduction to hospitality. Pearson Education.
Citazione stile Chigago Style (17a edizione)WALKER, John R. Introduction to Hospitality. Pearson Education, 2017.
Citatione MLA (9a ed.)WALKER, John R. Introduction to Hospitality. Pearson Education, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.