APA Style

ZIMMERMANN, D. (2015). Therapist Effects on Attrition in Psychotherapy Outpatients . Springer Fachmedien Wiesbaden: Springer Wiesbaden.

MLA Style

ZIMMERMANN, Dirk. "Therapist Effects on Attrition in Psychotherapy Outpatients". Springer Fachmedien Wiesbaden: Springer Wiesbaden, 2015. Text.