APA (7th ed.) Citation

Humphreys, K. (2011). Circles of recovery : self-help organizations for addictions / Keith Humphreys: Self-help organizations for addictions. Cambridge University Press.

Chicago Style (17th ed.) Citation

Humphreys, Keith. Circles of Recovery : Self-help Organizations for Addictions / Keith Humphreys: Self-help Organizations for Addictions. Cambridge: Cambridge University Press, 2011.

MLA (9th ed.) Citation

Humphreys, Keith. Circles of Recovery : Self-help Organizations for Addictions / Keith Humphreys: Self-help Organizations for Addictions. Cambridge University Press, 2011.

Warning: These citations may not always be 100% accurate.