APA (7th ed.) Citation

Clark, D., & Ehlers, A. (1993). An overview of the cognitive theory and treatment of panic disorder.

Chicago Style (17th ed.) Citation

Clark, D., and A. Ehlers. An Overview of the Cognitive Theory and Treatment of Panic Disorder. 1993.

MLA (9th ed.) Citation

Clark, D., and A. Ehlers. An Overview of the Cognitive Theory and Treatment of Panic Disorder. 1993.

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