Dyfyniad APA

Knaus, W. J., Carlson, J., Shoup, A., & Kahn, B. (2014). The cognitive behavioral workbook for anxiety: A step-by-step program (Second edition.). New Harbinger Publications, Inc..

Dyfyniad Arddull Chicago

Knaus, William J., Jon Carlson, Amy Shoup, and Brady Kahn. The Cognitive Behavioral Workbook for Anxiety: A Step-by-step Program. Second edition. Oakland, California: New Harbinger Publications, Inc., 2014.

Dyfyniad MLA

Knaus, William J., et al. The Cognitive Behavioral Workbook for Anxiety: A Step-by-step Program. Second edition. New Harbinger Publications, Inc., 2014.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.