APA (7th ed.) Citation

Zettle, R. D. (2007). ACT for depression : a clinician's guide to using acceptance & commitment therapy in treating depression / Robert D. Zettle: A clinician's guide to using acceptance & commitment therapy in treating depression. New Harbinger.

Chicago Style (17th ed.) Citation

Zettle, Robert D. ACT for Depression : A Clinician's Guide to Using Acceptance & Commitment Therapy in Treating Depression / Robert D. Zettle: A Clinician's Guide to Using Acceptance & Commitment Therapy in Treating Depression. Oakland, Calif.: New Harbinger, 2007.

MLA (9th ed.) Citation

Zettle, Robert D. ACT for Depression : A Clinician's Guide to Using Acceptance & Commitment Therapy in Treating Depression / Robert D. Zettle: A Clinician's Guide to Using Acceptance & Commitment Therapy in Treating Depression. New Harbinger, 2007.

Warning: These citations may not always be 100% accurate.