Stone Douglas, Heen, S., & Patton Bruce. (1999). Difficult conversations: How to discuss what matters most. Penguin Books.
Dyfyniad Arddull ChicagoStone Douglas, Sheila Heen, and Patton Bruce. Difficult Conversations: How to Discuss What Matters Most. New York: Penguin Books, 1999.
Dyfyniad MLAStone Douglas, et al. Difficult Conversations: How to Discuss What Matters Most. Penguin Books, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.