Walker, J. R. (1999). Introduction to hospitality (2nd ed.). Upper Saddle River, N.J.: Prentice Hall.
Chicago-stil citatWalker, John R. Introduction to Hospitality. 2nd ed. Upper Saddle River, N.J.: Prentice Hall, 1999.
MLA-referensWalker, John R. Introduction to Hospitality. 2nd ed. Upper Saddle River, N.J.: Prentice Hall, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.