1.
Machine Cryptography and Modern Cryptanalysis
by Deavours, Cipher A., Kruh, ...
ISBN: 9780890061619
List Price: $129.00
2.
Cryptology Machines, History and Methods
by Winkel, B., Deavours, C. A....
ISBN: 9780890063996
List Price: $179.00
3.
United States Cryptographic Patents, 1861-1981
by Levine, Jack, Kruh, Louis
ISBN: 9780961056001
List Price: $10.00
5.
Machine Cryptography and Modern Cryptanalysis
by Deavours, Cipher A., Kruh, ...
ISBN: 9780608005560
List Price: $85.00
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Selections from Cryptologia History, People, and Technology
by Deavours, Cipher A., Kahn, ...
ISBN: 9780890068625
List Price: $125.00