APA (7th ed.) Citation
World Health Organization & ebrary, Inc. (2007). International travel and health: Situation as on 1 January 2007. World Health Organization.
Chicago Style (17th ed.) Citation
World Health Organization and Inc ebrary. International Travel and Health: Situation as on 1 January 2007. Geneva: World Health Organization, 2007.
MLA (9th ed.) Citation
World Health Organization and Inc ebrary. International Travel and Health: Situation as on 1 January 2007. World Health Organization, 2007.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.