APA (7th ed.) Citation

Williams, J. M. G., & Penman, D. (2011). Mindfulness: A practical guide to finding peace in a frantic world. Piatkus.

Chicago Style (17th ed.) Citation

Williams, J. Mark G., and Danny Penman. Mindfulness: A Practical Guide to Finding Peace in a Frantic World. London: Piatkus, 2011.

MLA (9th ed.) Citation

Williams, J. Mark G., and Danny Penman. Mindfulness: A Practical Guide to Finding Peace in a Frantic World. Piatkus, 2011.