APA (7th ed.) Citation

Milton H. Erickson Foundation, Zeig, J. K., & Shapiro, F. (2013). The evolution of psychotherapy. Milton H. Erickson Foundation.

Chicago Style (17th ed.) Citation

Milton H. Erickson Foundation, Jeffrey K. Zeig, and Francine Shapiro. The Evolution of Psychotherapy. Phoenix, AZ: Milton H. Erickson Foundation, 2013.

MLA (9th ed.) Citation

Milton H. Erickson Foundation, et al. The Evolution of Psychotherapy. Milton H. Erickson Foundation, 2013.