Citazione Stile APA (7a Edizione)

Prochaska, J. o., & Norcross, J. C. (1994). Systems of psychotherapy: A transtheoretical analysis (3rd ed.). Brooks/Cole.

Citazione stile Chigago Style (17a edizione)

Prochaska, James o., e John C. Norcross. Systems of Psychotherapy: A Transtheoretical Analysis. 3rd ed. California: Brooks/Cole, 1994.

Citatione MLA (9a ed.)

Prochaska, James o., e John C. Norcross. Systems of Psychotherapy: A Transtheoretical Analysis. 3rd ed. Brooks/Cole, 1994.