Cita APA (7a ed.)

Worthington, E. L. (2001). Five steps to forgiveness: The art and science of forgiving. Crown.

Cita Chicago Style (17a ed.)

Worthington, Everett L. Five Steps to Forgiveness: The Art and Science of Forgiving. New York: Crown, 2001.

Cita MLA (9a ed.)

Worthington, Everett L. Five Steps to Forgiveness: The Art and Science of Forgiving. Crown, 2001.