Can You Crack the Enigma Code?Book - 2006
Looking at some of the difficult codes in history that have withstood years of investigation, this title shows how to learn to solve or create almost any code. It explains what the theories are, and provides avenues for further exploration.
Publisher: London : Orion, 2006.
Characteristics: 291 p.,  p. of plates :,ill. (some col.) ;,24 cm.