(2009). Worldwide hospitality and tourism themes. Emerald Group Publishing.
Čikaški stil citiranja (17. izdanje)Worldwide Hospitality and Tourism Themes. [Bingley, U.K.]: Emerald Group Publishing, 2009.
MLA način citiranja (9. izdanje)Worldwide Hospitality and Tourism Themes. Emerald Group Publishing, 2009.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.