Gugler, J. (1988). The urbanization of the Third World. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Gugler, Josef. The Urbanization of the Third World. New York: Oxford University Press, 1988.
Lua MLA (9ú heag.)Gugler, Josef. The Urbanization of the Third World. Oxford University Press, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.