APA (7th ed.) Citation

Queen, E. (1967). Sherlock Holmes versus Jack the Ripper: A novel. Gollancz.

Chicago Style (17th ed.) Citation

Queen, Ellery. Sherlock Holmes Versus Jack the Ripper: A Novel. London: Gollancz, 1967.

MLA (8th ed.) Citation

Queen, Ellery. Sherlock Holmes Versus Jack the Ripper: A Novel. Gollancz, 1967.

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