APA način citiranja (7. izdanje)
Hay, I. M. (1977). Now why did I do that?: The Biblical basis of motivation. Sudan Interior Mission.
Čikaški stil citiranja (17. izdanje)
Hay, Ian M. Now Why Did I Do That?: The Biblical Basis of Motivation. Cedar Grove, N.J.: Sudan Interior Mission, 1977.
MLA način citiranja (9. izdanje)
Hay, Ian M. Now Why Did I Do That?: The Biblical Basis of Motivation. Sudan Interior Mission, 1977.
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