ebrary, Inc, & Lambert, M. J. (2013). Bergin and Garfield's handbook of psychotherapy and behavior change (6th ed.). John Wiley & Sons.
Cita Chicago (17th ed.)ebrary, Inc, i Michael J. Lambert. Bergin and Garfield's Handbook of Psychotherapy and Behavior Change. 6th ed. Hoboken, N.J.: John Wiley & Sons, 2013.
Cita MLA (9th ed.)ebrary, Inc, i Michael J. Lambert. Bergin and Garfield's Handbook of Psychotherapy and Behavior Change. 6th ed. John Wiley & Sons, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.