United Nations. Population Division. Dept. of Economic and Social Affairs. (2005). World population policies, 2005. Academic Foundation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations. Population Division. Dept. of Economic and Social Affairs. World Population Policies, 2005. Academic Foundation, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations. Population Division. Dept. of Economic and Social Affairs. World Population Policies, 2005. Academic Foundation, 2005.
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