APA-viite (7. p.)
Welfel, E. R. (2010). Ethics in counseling & psychotherapy: Standards, research, and emerging issues (4th ed.). Brooks/Cole.
Chicago-viite (17. p.)
Welfel, Elizabeth Reynolds. Ethics in Counseling & Psychotherapy: Standards, Research, and Emerging Issues. 4th ed. Australia: Brooks/Cole, 2010.
MLA-viite (9. p.)
Welfel, Elizabeth Reynolds. Ethics in Counseling & Psychotherapy: Standards, Research, and Emerging Issues. 4th ed. Brooks/Cole, 2010.
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