Zettle, R. D. (2007). ACT for depression: A clinician's guide to using acceptance & commitment therapy in treating depression (1. print.). New Harbinger.
Chicago Style (17th ed.) CitationZettle, Robert D. ACT for Depression: A Clinician's Guide to Using Acceptance & Commitment Therapy in Treating Depression. 1. print. Oakland, Calif: New Harbinger, 2007.
MLA (9th ed.) CitationZettle, Robert D. ACT for Depression: A Clinician's Guide to Using Acceptance & Commitment Therapy in Treating Depression. 1. print. New Harbinger, 2007.
Warning: These citations may not always be 100% accurate.