Cita APA (7th ed.)
McCollough, D. W. (1990). Finding happiness in the most unlikely places (ed.). Intervarsity Press.
Cita Chicago (17th ed.)
McCollough, Donald W. Finding Happiness in the Most Unlikely Places. ed. Illinois: Intervarsity Press, 1990.
Cita MLA (9th ed.)
McCollough, Donald W. Finding Happiness in the Most Unlikely Places. ed. Intervarsity Press, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.