Sharf, R. S. (2008). Theories of psychotherapy and counseling (4th ed.). Thomson Brooks/Cole.
Dyfyniad Arddull ChicagoSharf, Richard S. Theories of Psychotherapy and Counseling. 4th ed. Belmont, Calif: Thomson Brooks/Cole, 2008.
Dyfyniad MLASharf, Richard S. Theories of Psychotherapy and Counseling. 4th ed. Thomson Brooks/Cole, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.