United Nations. Department for Economic and Social Information and Policy Analysis. (1993). Population growth and policies in mega-cities. Sao Paulo. United Nations.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations. Department for Economic and Social Information and Policy Analysis. Population Growth and Policies in Mega-cities. Sao Paulo. New York: United Nations, 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations. Department for Economic and Social Information and Policy Analysis. Population Growth and Policies in Mega-cities. Sao Paulo. United Nations, 1993.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.