Cita APA (7a ed.)

Stone, D., Patton, B., & Heen, S. (2001). Difficult conversations: How to discuss what matters most. Penguin.

Cita Chicago Style (17a ed.)

Stone, Douglas, Bruce Patton, y Sheila Heen. Difficult Conversations: How to Discuss What Matters Most. London: Penguin, 2001.

Cita MLA (9a ed.)

Stone, Douglas, et al. Difficult Conversations: How to Discuss What Matters Most. Penguin, 2001.