(1981). World health statistics annual 1981: Vital statistics and causes of death. World Health Organization.
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Chicago Style (17th ed.) Citation
World Health Statistics Annual 1981: Vital Statistics and Causes of Death. Genéve: World Health Organization, 1981.
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MLA (9th ed.) Citation
World Health Statistics Annual 1981: Vital Statistics and Causes of Death. World Health Organization, 1981.
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Warning: These citations may not always be 100% accurate.