APA (7th ed.) Citation

Prochaska, J. O., & Norcross, J. C. (2010). Systems of psychotherapy: A transtheoretical analysis (7th, international ed.). Brooks/Cole Cengage Learning.

Chicago Style (17th ed.) Citation

Prochaska, James O., and John C. Norcross. Systems of Psychotherapy: A Transtheoretical Analysis. 7th, international ed. Australia: Brooks/Cole Cengage Learning, 2010.

MLA (9th ed.) Citation

Prochaska, James O., and John C. Norcross. Systems of Psychotherapy: A Transtheoretical Analysis. 7th, international ed. Brooks/Cole Cengage Learning, 2010.