Citação norma APA

United Nations. Department of International Economic and Social Affairs. Population Division. (1991). Population growth and policies in mega-cities: Mexico City. United Nations.

Citação norma Chicago

United Nations. Department of International Economic and Social Affairs. Population Division. Population Growth and Policies in Mega-cities: Mexico City. New York: United Nations, 1991.

Citação norma MLA

United Nations. Department of International Economic and Social Affairs. Population Division. Population Growth and Policies in Mega-cities: Mexico City. United Nations, 1991.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.