Lua APA (7ú heag.)
Hay, M. I. (1977). Now why did I do that?: The Biblical basis of motivation. Sudan Interior Mission.
Lua i Stíl Chicago (17ú heag.)
Hay, M. Ian. Now Why Did I Do That?: The Biblical Basis of Motivation. Cedar Grove: Sudan Interior Mission, 1977.
Lua MLA (9ú heag.)
Hay, M. Ian. Now Why Did I Do That?: The Biblical Basis of Motivation. Sudan Interior Mission, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.