United Nations. Department of International Economic and Social Affairs. (1980). Patterns of urban and rural population growth. United Nations.
Lua i Stíl Chicago (17ú heag.)United Nations. Department of International Economic and Social Affairs. Patterns of Urban and Rural Population Growth. New York: United Nations, 1980.
Lua MLA (8ú heag.)United Nations. Department of International Economic and Social Affairs. Patterns of Urban and Rural Population Growth. United Nations, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.