Walker, J. R. (2002). Instructor's manual sntroquction to hospitality (Thir edition.). New Jersey: Pentice Hall.
Chicago ZitierstilWalker, John R. Instructor's Manual Sntroquction to Hospitality. Thir edition. New Jersey: Pentice Hall, 2002.
MLA ZitierstilWalker, John R. Instructor's Manual Sntroquction to Hospitality. Thir edition. New Jersey: Pentice Hall, 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.