Doyle, S. A. C., Hardy-Gould, J., & Hajdinjak-Krec, M. (2010). Sherlock Holmes: The emarald crown. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Doyle, Sir Arthur Conan, Janet Hardy-Gould, agus Marcela Hajdinjak-Krec. Sherlock Holmes: The Emarald Crown. Oxford: Oxford University Press, 2010.
Lua MLA (8ú heag.)Doyle, Sir Arthur Conan, et al. Sherlock Holmes: The Emarald Crown. Oxford University Press, 2010.
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