Sperry, Len Core clinical competencies in counseling and psychotherapy/ Len Sperry & Jon Sperry - New York : Routledge , c2023. - xxvi, 301 pages : illustrations ; 23cm. Includes bibliographical references index. ISBN: 978-1032169811 Subjects--Topical Terms: 1. Counseling. 2. Psychology/Psychotherapy/Counseling. Dewey Class. No.: Circ. 616.89 S751c 2023