Cita APA

(1982). Demographic indicators of countries: Estimates and projections as assessed in 1980. New York: United Nations, Department of International Economic and Social Affairs.

Citación estilo Chicago

Demographic Indicators of Countries: Estimates and Projections As Assessed in 1980. New York: United Nations, Department of International Economic and Social Affairs, 1982.

Cita MLA

Demographic Indicators of Countries: Estimates and Projections As Assessed in 1980. New York: United Nations, Department of International Economic and Social Affairs, 1982.