Doyle, A. C., Smith, A. E., & Linton, A. (1961). The sign of four. Murray.
Chicago Style (17th ed.) CitationDoyle, Arthur Conan, A. E. Smith, and Anne Linton. The Sign of Four. London: Murray, 1961.
MLA (9th ed.) CitationDoyle, Arthur Conan, et al. The Sign of Four. Murray, 1961.
Warning: These citations may not always be 100% accurate.