Doyle, S. A. C., Bowler, B., & Scott, S. (2010). Sherlock Holmes: The blue Diamond. Oxford University Press.

Doyle, Sir Arthur Conan, Bill Bowler, and Susan Scott. Sherlock Holmes: The Blue Diamond. Oxford: Oxford University Press, 2010.

Doyle, Sir Arthur Conan, et al. Sherlock Holmes: The Blue Diamond. Oxford University Press, 2010.