Oldiees Publishing, Arthur Conan Doyle, Guy de Maupassant, Charles Dickens, E. W. Hornung (2014). “50 Crime Short Stories - THE BEST SHORT WORKS COLLECTION”, p.441, Oldiees Publishing
Arthur Conan Doyle (2007). “The New Annotated Sherlock Holmes: The Complete Short Stories: The Adventures of Sherlock Holmes and The Memoirs of Sherlock Holmes (Non-slipcased Edition) (Vol. 1) (The Annotated Books)”, p.305, W. W. Norton & Company