APA-viite (7. p.)
Johnson, K. O. (1995). Why do Catholics do that?: A guide to the teachings and practices of the Catholic Church. Ballantine Books.
Chicago-viite (17. p.)
Johnson, Kevin Orlin. Why Do Catholics Do That?: A Guide to the Teachings and Practices of the Catholic Church. New York: Ballantine Books, 1995.
MLA-viite (9. p.)
Johnson, Kevin Orlin. Why Do Catholics Do That?: A Guide to the Teachings and Practices of the Catholic Church. Ballantine Books, 1995.
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