Dyfyniad APA
United Kingdom Council for Psychotherapy, ebrary, Inc, Loewenthal, D., & Winter, D. (2006). What is psychotherapeutic research? Karnac.
Dyfyniad Arddull Chicago
United Kingdom Council for Psychotherapy, Inc ebrary, Del Loewenthal, and David Winter. What Is Psychotherapeutic Research? [London]: Karnac, 2006.
Dyfyniad MLA
United Kingdom Council for Psychotherapy, et al. What Is Psychotherapeutic Research? Karnac, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.