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Codes and ciphers /

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Bibliographic Details
Main Author: D'Agapeyeff, A. (Alexander)
Format: Book
Language:English
Published: London, New York : Detroit : Oxford University Press; Gale Research Co., 1974.
Subjects:
Ciphers.
Cryptography.
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by D'Agapeyeff, A. (Alexander)
Published 1939
Book
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