World Health Organization & ebrary, Inc. (2007). World health statistics 2007. World Health Organization.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorld Health Organization और Inc ebrary. World Health Statistics 2007. Geneva, Switzerland: World Health Organization, 2007.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWorld Health Organization और Inc ebrary. World Health Statistics 2007. World Health Organization, 2007.
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