Mr. Babbage's secret : the tale of a cypher and APL /

Bibliographic Details
Main Author:	Franksen, Ole Immanuel
Format:	Book
Language:	English
Published:	Englewood Cliffs, N.J. : Prentice Hall, 1985
Subjects:	Babbage, Charles, > 1791-1871. Cryptographers > Great Britain > Biography. Ciphers > History. Cryptography > History. APL (Computer program language)

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