APA (7th ed.) Citation

Sanders, D., & Wills, F. (2005). Cognitive therapy: An introduction (2nd ed.). SAGE.

Chicago Style (17th ed.) Citation

Sanders, Diana, and Frank Wills. Cognitive Therapy: An Introduction. 2nd ed. London: SAGE, 2005.

MLA (9th ed.) Citation

Sanders, Diana, and Frank Wills. Cognitive Therapy: An Introduction. 2nd ed. SAGE, 2005.