APA (7th ed.) Citation

Davey, G. (2023). The catastrophic worrier: Why you worry & how to stop. New Harbinger Publications, Inc..

Chicago Style (17th ed.) Citation

Davey, Graham. The Catastrophic Worrier: Why You Worry & How to Stop. Oakland, CA: New Harbinger Publications, Inc., 2023.

MLA (9th ed.) Citation

Davey, Graham. The Catastrophic Worrier: Why You Worry & How to Stop. New Harbinger Publications, Inc., 2023.