APA Citation

Doyle, A. C. (2006). The sign of four Sherlock Holmes: The greatest detective of them all. London: Headline Review.

Chicago Style Citation

Doyle, Arthur Conan. The Sign of Four Sherlock Holmes: The Greatest Detective of Them All. London: Headline Review, 2006.

MLA Citation

Doyle, Arthur Conan. The Sign of Four Sherlock Holmes: The Greatest Detective of Them All. London: Headline Review, 2006.

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