Engel, B. (2001). The power of apology: Healing steps to transform all your relationships. New York: J. Wiley.
Dyfyniad Arddull ChicagoEngel, Beverly. The Power of Apology: Healing Steps to Transform All Your Relationships. New York: J. Wiley, 2001.
Dyfyniad MLAEngel, Beverly. The Power of Apology: Healing Steps to Transform All Your Relationships. New York: J. Wiley, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.