The Secret History of Assassination: The killers and their paymasters revealed
by Richard Belfield
ISBN 13: 9781845297664
Format: Paperback (336 pages) Publisher: Magpie Published: 17 Apr 2008
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Can You Crack The Enigma Code?
ISBN 13: 9780752875262
Format: Hardcover (336 pages) Publisher: Orion Published: 28 Sep 2006
SAS Operation Storm: Nine Men Against Four Hundred
by Roger Cole, Richard Belfield
ISBN 13: 9781444726961
Format: Paperback (336 pages) Publisher: Hodder & Stoughton Published: 02 Feb 2012
Can You Crack the Enigma Code?
ISBN 13: 9780752885278
Format: Paperback (320 pages) Publisher: Orion (an Imprint of The Orion Publishing Group Ltd ) Published: 28 Sep 2006 Other Format: Hardcover
The Six Unsolved Ciphers: Inside the Mysterious Codes That Have Confounded the World's Greatest Cryptographers
ISBN 13: 9781569756287
Format: Paperback (312 pages) Publisher: Ulysses Press Published: 28 Aug 2007