APA (7th ed.) Citation

Sage Publications, Bright, G., & Harrison, G. (2013). Understanding research in counselling. Learning Matters.

Chicago Style (17th ed.) Citation

Sage Publications, Graham Bright, and Gill Harrison. Understanding Research in Counselling. London: Learning Matters, 2013.

MLA (9th ed.) Citation

Sage Publications, et al. Understanding Research in Counselling. Learning Matters, 2013.