Marshall, E. J., Humphreys, K., & Ball, D. M. (2010). The treatment of drinking problems: A guide for the helping professions (5th ed.). Cambridge University Press.

Marshall, E. Jane, Keith Humphreys, and David M. Ball. The Treatment of Drinking Problems: A Guide for the Helping Professions. 5th ed. Cambridge ; New York: Cambridge University Press, 2010.

Marshall, E. Jane, et al. The Treatment of Drinking Problems: A Guide for the Helping Professions. 5th ed. Cambridge University Press, 2010.