Citace podle APA (7th ed.)
Gula, R. M. (1982). What are they saying about moral norms? Paulist Press.
Citace podle Chicago (17th ed.)
Gula, Richard M. What Are They Saying About Moral Norms? New York: Paulist Press, 1982.
Citace podle MLA (9th ed.)
Gula, Richard M. What Are They Saying About Moral Norms? Paulist Press, 1982.
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