Cita APA

Doyle, A. C., & Page, J. (2010). Sherlock Holmes: The sign of four. Oxford University Press.

Citación estilo Chicago

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

Cita MLA

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