United Nations. Department of International Economic and Social Affairs. (1980). Patterns of urban and rural population growth. United Nations.
Cita Chicago (17th ed.)United Nations. Department of International Economic and Social Affairs. Patterns of Urban and Rural Population Growth. New York: United Nations, 1980.
Cita MLA (8th ed.)United Nations. Department of International Economic and Social Affairs. Patterns of Urban and Rural Population Growth. United Nations, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.