ebrary, Inc, & Lambert, M. J. (2013). Bergin and Garfield's handbook of psychotherapy and behavior change (6th ed.). John Wiley & Sons.
Chicago Style (17th ed.) Zitazioaebrary, Inc, eta Michael J. Lambert. Bergin and Garfield's Handbook of Psychotherapy and Behavior Change. 6th ed. Hoboken, N.J.: John Wiley & Sons, 2013.
MLA (9th ed.) Zitazioaebrary, Inc, eta Michael J. Lambert. Bergin and Garfield's Handbook of Psychotherapy and Behavior Change. 6th ed. John Wiley & Sons, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.