ebrary, Inc, Simpson, D., & Miller, L. (2004). Unexpected gains: Psychotherapy with people with learning disabilities. Karnac Books.
Dyfyniad Arddull Chicagoebrary, Inc, David Simpson, and Lynda Miller. Unexpected Gains: Psychotherapy with People with Learning Disabilities. London ; New York: Karnac Books, 2004.
Dyfyniad MLAebrary, Inc, et al. Unexpected Gains: Psychotherapy with People with Learning Disabilities. Karnac Books, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.