APA-ийн эшлэл(7 дахь хэвлэлт)

Lystra, K. (2004). Dangerous intimacy: The untold story of Mark Twain's final years. University of California Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Lystra, Karen. Dangerous Intimacy: The Untold Story of Mark Twain's Final Years. Berkeley: University of California Press, 2004.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Lystra, Karen. Dangerous Intimacy: The Untold Story of Mark Twain's Final Years. University of California Press, 2004.