Lua APA (7ú heag.)
Horowitz, I. L. (1972). Three worlds of development: The theory and practice of international stratification (2d ed.). Oxford University Press.
Lua i Stíl Chicago (17ú heag.)
Horowitz, Irving Louis. Three Worlds of Development: The Theory and Practice of International Stratification. 2d ed. New York: Oxford University Press, 1972.
Lua MLA (9ú heag.)
Horowitz, Irving Louis. Three Worlds of Development: The Theory and Practice of International Stratification. 2d ed. Oxford University Press, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.