Rostron, S. S., Van Rensburg, M. J., & Sampaio, D. M. (2009). Business coaching international: Transforming individuals and organizations. Karnac.

Rostron, Sunny Stout, Marti Janse Van Rensburg, and Daniel Marques Sampaio. Business Coaching International: Transforming Individuals and Organizations. London: Karnac, 2009.

Rostron, Sunny Stout, et al. Business Coaching International: Transforming Individuals and Organizations. Karnac, 2009.