Dyfyniad APA

Welfel, E. R. (2010). Ethics in counseling & psychotherapy: Standards, research, and emerging issues (4th ed.). Brooks/Cole.

Dyfyniad Arddull Chicago

Welfel, Elizabeth Reynolds. Ethics in Counseling & Psychotherapy: Standards, Research, and Emerging Issues. 4th ed. Australia: Brooks/Cole, 2010.

Dyfyniad MLA

Welfel, Elizabeth Reynolds. Ethics in Counseling & Psychotherapy: Standards, Research, and Emerging Issues. 4th ed. Brooks/Cole, 2010.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.