APA (7th ed.) Citation

Naciones Unidas. Departamento de Asuntos Económicos y Sociales. (1991). World urbanization prospects 1990: Estimates and projections of urban and rural populations and of urban agglomerations. United Nations.

Chicago Style (17th ed.) Citation

Naciones Unidas. Departamento de Asuntos Económicos y Sociales. World Urbanization Prospects 1990: Estimates and Projections of Urban and Rural Populations and of Urban Agglomerations. New York: United Nations, 1991.

MLA (9th ed.) Citation

Naciones Unidas. Departamento de Asuntos Económicos y Sociales. World Urbanization Prospects 1990: Estimates and Projections of Urban and Rural Populations and of Urban Agglomerations. United Nations, 1991.

Warning: These citations may not always be 100% accurate.