APA Citation

Doyle, S. A. C. (2010). Sherlock Holmes: The Sign of Four. Oxford University Press.

Chicago Style Citation

Doyle, Sir Arthur Conan. Sherlock Holmes: The Sign of Four. Oxford University Press, 2010.

MLA Citation

Doyle, Sir Arthur Conan. Sherlock Holmes: The Sign of Four. Oxford University Press, 2010.

Warning: These citations may not always be 100% accurate.