Gaya APA

Welfel, E, R. (2006). Etrhics in Counseling and Psychotherapy : Standards, Research, and Emerging Issues 3'rd Ed. (3). USA: Thomson Brooks/Cole.

Gaya MLA

Welfel, Elizabeth, Reynolds. "Etrhics in Counseling and Psychotherapy : Standards, Research, and Emerging Issues 3'rd Ed.". 3 USA: Thomson Brooks/Cole, 2006. Text.