APA (7th ed.) Citation

Engle, D. E., & Arkowitz, H. (2006). Ambivalence in psychotherapy: Facilitating readiness to change. Guilford Press.

Chicago Style (17th ed.) Citation

Engle, David E., and Hal Arkowitz. Ambivalence in Psychotherapy: Facilitating Readiness to Change. New York: Guilford Press, 2006.

MLA (9th ed.) Citation

Engle, David E., and Hal Arkowitz. Ambivalence in Psychotherapy: Facilitating Readiness to Change. Guilford Press, 2006.