Lua APA (7ú heag.)
McCollough, D. W. (1990). Finding happiness in the most unlikely places (ed.). Intervarsity Press.
Lua i Stíl Chicago (17ú heag.)
McCollough, Donald W. Finding Happiness in the Most Unlikely Places. ed. Illinois: Intervarsity Press, 1990.
Lua MLA (9ú heag.)
McCollough, Donald W. Finding Happiness in the Most Unlikely Places. ed. Intervarsity Press, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.