Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.