APA (7th ed.) Citation
Campbell, M., & ET AL. (2014). Psychological therapies for people with intellectual disabilities: Comments on a Matrix of evidence for interventions in challenging behaviour.
Chicago Style (17th ed.) Citation
Campbell, M., and ET AL. Psychological Therapies for People with Intellectual Disabilities: Comments on a Matrix of Evidence for Interventions in Challenging Behaviour. 2014.
MLA (9th ed.) Citation
Campbell, M., and ET AL. Psychological Therapies for People with Intellectual Disabilities: Comments on a Matrix of Evidence for Interventions in Challenging Behaviour. 2014.
Warning: These citations may not always be 100% accurate.