六つのサッチャー
Wheeler, Thomas Bruce (September 9, 2003). Finding Sherlock's London Travel Guide to over 200 Sites in London. Lincoln, New York: iUniverse, Inc.. ASIN 0595281141. ISBN 0-595-28114-1. OCLC 317799290
London Street Atlas (A-Z Street Atlas). Geographers' A–Z Street Atlas (8 ed.). Sevenoaks: Geographers' A–Z Map Company Limited. (2008/8/3). ISBN 978-1-84348-602-2. OCLC 259710758