Cita APA (7th ed.)

Sperry,Len, & Sperry,Jon. (2023). Core Clinical Competencies in Counseling and Psychotherapy: Becoming a Highly Competent and Effective Therapist (2nd.). Routledge.

Cita Chicago (17th ed.)

Sperry,Len, i Sperry,Jon. Core Clinical Competencies in Counseling and Psychotherapy: Becoming a Highly Competent and Effective Therapist. 2nd. New York & London: Routledge, 2023.

Cita MLA (9th ed.)

Sperry,Len, i Sperry,Jon. Core Clinical Competencies in Counseling and Psychotherapy: Becoming a Highly Competent and Effective Therapist. 2nd. Routledge, 2023.