Dyfyniad APA

United Nations. Department for Economic and Social Information and Policy Analysis. (1993). Population growth and policies in mega-cities. Sao Paulo. United Nations.

Dyfyniad Arddull Chicago

United Nations. Department for Economic and Social Information and Policy Analysis. Population Growth and Policies in Mega-cities. Sao Paulo. New York: United Nations, 1993.

Dyfyniad MLA

United Nations. Department for Economic and Social Information and Policy Analysis. Population Growth and Policies in Mega-cities. Sao Paulo. United Nations, 1993.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.