APA (7 वां संस्करण) प्रशस्ति पत्र

Gula, R. M. (1982). What are they saying about moral norms? Paulist Press.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Gula, Richard M. What Are They Saying About Moral Norms? New York: Paulist Press, 1982.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Gula, Richard M. What Are They Saying About Moral Norms? Paulist Press, 1982.

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