APA (7th ed.) Citation

Sanders, D., Wills, F., & Hallam, R. S. (2003). Counselling for anxiety problems (2nd ed.). Sage.

Chicago Style (17th ed.) Citation

Sanders, Diana, Frank Wills, and Richard S. Hallam. Counselling for Anxiety Problems. 2nd ed. London: Sage, 2003.

MLA (9th ed.) Citation

Sanders, Diana, et al. Counselling for Anxiety Problems. 2nd ed. Sage, 2003.