APA (7th ed.) Citation

Lietaer, G., Rombauts, J., & Van Balen, R. (1990). Client-centered and Experiential Psychotherapy in the Nineties. Leuven University Press.

Chicago Style (17th ed.) Citation

Lietaer, G., J. Rombauts, and R. Van Balen. Client-centered and Experiential Psychotherapy in the Nineties. Leuven University Press, 1990.

MLA (9th ed.) Citation

Lietaer, G., et al. Client-centered and Experiential Psychotherapy in the Nineties. Leuven University Press, 1990.