APA-ийн эшлэл(7 дахь хэвлэлт)

Stone Douglas, Heen, S., & Patton Bruce. (1999). Difficult conversations: How to discuss what matters most. Penguin Books.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Stone Douglas, Sheila Heen, ба Patton Bruce. Difficult Conversations: How to Discuss What Matters Most. New York: Penguin Books, 1999.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Stone Douglas, et al. Difficult Conversations: How to Discuss What Matters Most. Penguin Books, 1999.