Cita APA (7a ed.)

Symington, N., Symington, J., Symington, A., & Symington, D. (2002). How to choose a psychotherapist. Karnac Books.

Cita Chicago Style (17a ed.)

Symington, Neville, Joan Symington, Andrew Symington, y David Symington. How to Choose a Psychotherapist. London: Karnac Books, 2002.

Cita MLA (9a ed.)

Symington, Neville, et al. How to Choose a Psychotherapist. Karnac Books, 2002.