Winkel, B. J. (2005). The German enigma cipher machine: Beginnings, success, and ultimate failure. Artech House.
Style de citation Chicago (17e éd.)Winkel, Brian J. The German Enigma Cipher Machine: Beginnings, Success, and Ultimate Failure. Boston: Artech House, 2005.
Style de citation MLA (8e éd.)Winkel, Brian J. The German Enigma Cipher Machine: Beginnings, Success, and Ultimate Failure. Artech House, 2005.
Attention : ces citations peuvent ne pas être correctes à 100%.