APA (7 वां संस्करण) प्रशस्ति पत्र
Horowitz, I. L. (1972). Three worlds of development: The theory and practice of international stratification (2d ed.). Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Horowitz, Irving Louis. Three Worlds of Development: The Theory and Practice of International Stratification. 2d ed. New York: Oxford University Press, 1972.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Horowitz, Irving Louis. Three Worlds of Development: The Theory and Practice of International Stratification. 2d ed. Oxford University Press, 1972.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.