Citace podle APA (7th ed.)
World Health Organization & ebrary, Inc. (2010). International travel and health. World Health Organization.
Citace podle Chicago (17th ed.)
World Health Organization a Inc ebrary. International Travel and Health. Geneva: World Health Organization, 2010.
Citace podle MLA (9th ed.)
World Health Organization a Inc ebrary. International Travel and Health. World Health Organization, 2010.
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