APA (7th ed.) Citation

Curtis, R. C., & Stricker, G. (1991). How people change: Inside and outside therapy. Plenum Press.

Chicago Style (17th ed.) Citation

Curtis, Rebecca C., and George Stricker. How People Change: Inside and Outside Therapy. New York: Plenum Press, 1991.

MLA (9th ed.) Citation

Curtis, Rebecca C., and George Stricker. How People Change: Inside and Outside Therapy. Plenum Press, 1991.