APA (7 वां संस्करण) प्रशस्ति पत्र
Timmons, M. (1999). Morality without foundations: A defense of ethical contextualism. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Timmons, Mark. Morality Without Foundations: A Defense of Ethical Contextualism. New York: Oxford University Press, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Timmons, Mark. Morality Without Foundations: A Defense of Ethical Contextualism. Oxford University Press, 1999.
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