Oelkers, D. B. (2007). Travel and tourism marketing. Mason, OH: Thomson/South-Western.
Chicago Style aipamenaOelkers, Dotty Boen. Travel and Tourism Marketing. Mason, OH: Thomson/South-Western, 2007.
MLA aipamenaOelkers, Dotty Boen. Travel and Tourism Marketing. Mason, OH: Thomson/South-Western, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.