Template:Cite isbn/978149440643
Schaffer, Bernard. Whitechapel: The Final Stand of Sherlock Holmes (Jack the Ripper). Paperback (CreateSpace Independent Publishing Platform). 2011-06-23: 418 pages. ISBN 978-1-494-40643-1 （英语）.
Schaffer, Bernard. Whitechapel: The Final Stand of Sherlock Holmes (Jack the Ripper). Paperback (CreateSpace Independent Publishing Platform). 2011-06-23: 418 pages. ISBN 978-1-494-40643-1 （英语）.