Dyfyniad APA
ebrary, Inc, & Gilson, M. (2009). Overcoming depression: A cognitive therapy approach : therapist guide (2nd ed.). Oxford University Press.
Dyfyniad Arddull Chicago
ebrary, Inc, and Mark Gilson. Overcoming Depression: A Cognitive Therapy Approach : Therapist Guide. 2nd ed. Oxford ; New York: Oxford University Press, 2009.
Dyfyniad MLA
ebrary, Inc, and Mark Gilson. Overcoming Depression: A Cognitive Therapy Approach : Therapist Guide. 2nd ed. Oxford University Press, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.