APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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