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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations. Dept. of Economic and Social Affairs. Population Division और United Nations expert group meeting on policy responses to population ageing and population decline (2000 : New York). United Nations Expert Group Meeting on Policy Responses to Population Ageing and Population Decline (New York, 16-18 October 2000. New York, N.Y: United Nations, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations. Dept. of Economic and Social Affairs. Population Division और United Nations expert group meeting on policy responses to population ageing and population decline (2000 : New York). United Nations Expert Group Meeting on Policy Responses to Population Ageing and Population Decline (New York, 16-18 October 2000. United Nations, 2001.