APA (7th ed.) Citation

Barker, C. ., Elliot, R. ., & Pistrang, N. (2002). Research methods in clinical psychology: An introduction for students and practitioners (2nd ed.). John Wiley.

Chicago Style (17th ed.) Citation

Barker, Chris , Robert Elliot, and Nancy Pistrang. Research Methods in Clinical Psychology: An Introduction for Students and Practitioners. 2nd ed. Chichester, West Sussex, England: John Wiley, 2002.

MLA (9th ed.) Citation

Barker, Chris , et al. Research Methods in Clinical Psychology: An Introduction for Students and Practitioners. 2nd ed. John Wiley, 2002.