Citace podle APA (7th ed.)
World Health Organization & ebrary, Inc. (2002). International travel and health: Situation as on 1 January 2002. Woam d Health Organization.
Citace podle Chicago (17th ed.)
World Health Organization a Inc ebrary. International Travel and Health: Situation as on 1 January 2002. Geneva: Woam d Health Organization, 2002.
Citace podle MLA (9th ed.)
World Health Organization a Inc ebrary. International Travel and Health: Situation as on 1 January 2002. Woam d Health Organization, 2002.
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