Cita APA (7th ed.)
Prochaska, J. o., & Norcross, J. C. (2010). Systems of psychotherapy: A transtheoretical analysis (7th ed.). Brooks/Cole.
Cita Chicago (17th ed.)
Prochaska, James o., i John C. Norcross. Systems of Psychotherapy: A Transtheoretical Analysis. 7th ed. California: Brooks/Cole, 2010.
Cita MLA (9th ed.)
Prochaska, James o., i John C. Norcross. Systems of Psychotherapy: A Transtheoretical Analysis. 7th ed. Brooks/Cole, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.