APA

Sir Arthur Conan Doyle, .Sherlock Holmes The Complete Works (The Sign Of The Four). : .

Chicago

Sir Arthur Conan Doyle, .Sherlock Holmes The Complete Works (The Sign Of The Four). : .

Harvard

Sir Arthur Conan Doyle, .Sherlock Holmes The Complete Works (The Sign Of The Four). : .

MLA

Sir Arthur Conan Doyle, .: . .