APA (7th ed.) Citation

Simpson, H. B. (2010). Anxiety disorders: Theory, research, and clinical perspectives. Cambridge University Press.

Chicago Style (17th ed.) Citation

Simpson, Helen Blair. Anxiety Disorders: Theory, Research, and Clinical Perspectives. Cambridge: Cambridge University Press, 2010.

MLA (9th ed.) Citation

Simpson, Helen Blair. Anxiety Disorders: Theory, Research, and Clinical Perspectives. Cambridge University Press, 2010.