Dyfyniad APA

ebrary, Inc, & Lambert, M. J. (2013). Bergin and Garfield's handbook of psychotherapy and behavior change (6th ed.). John Wiley & Sons.

Dyfyniad Arddull Chicago

ebrary, Inc, and Michael J. Lambert. Bergin and Garfield's Handbook of Psychotherapy and Behavior Change. 6th ed. Hoboken, N.J.: John Wiley & Sons, 2013.

Dyfyniad MLA

ebrary, Inc, and Michael J. Lambert. Bergin and Garfield's Handbook of Psychotherapy and Behavior Change. 6th ed. John Wiley & Sons, 2013.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.