Lewis, R. C. (1997). Cases in hospitality marketing and management (2nd ed.). John Wiley.
Chicago-viite (17. p.)Lewis, Robert C. Cases in Hospitality Marketing and Management. 2nd ed. New York: John Wiley, 1997.
MLA-viite (9. p.)Lewis, Robert C. Cases in Hospitality Marketing and Management. 2nd ed. John Wiley, 1997.
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