World Health Organization. 2007. World health statistics 2007. Geneva: World Health Organization.
Citace podle APA (7th ed.)World Health Organization. (2007). World health statistics 2007. World Health Organization.
Citace podle Chicago (17th ed.)World Health Organization. World Health Statistics 2007. Geneva: World Health Organization, 2007.
Citace podle MLA (9th ed.)World Health Organization. World Health Statistics 2007. World Health Organization, 2007.
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