APA (7 वां संस्करण) प्रशस्ति पत्र
Irwin, T. (2007). The development of ethics: A historical and critical study. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Irwin, Terence. The Development of Ethics: A Historical and Critical Study. New York ; Oxford: Oxford University Press, 2007.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Irwin, Terence. The Development of Ethics: A Historical and Critical Study. Oxford University Press, 2007.
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