Gaya APA

PhD, D, A, C. (2020). The Negative Thoughts Workbook : CBT Skills to Overcome the Repetitive Worry, Shame, and Rumination That Drive Anxiety and Depression . Oakland, California, USA: New Harbinger Publications.

Gaya MLA

PhD, David, A., Clark,. "The Negative Thoughts Workbook : CBT Skills to Overcome the Repetitive Worry, Shame, and Rumination That Drive Anxiety and Depression". Oakland, California, USA: New Harbinger Publications, 2020. Text.