The codebreakers
Subtitle: the story of secret writing
By: by David Kahn ; abridged by the author.
Publisher: New American Library
Published: 1973
Place of publication: New York
Language: eng
Number of pages: 476
Subjects: Cryptography -- History.; Cryptographers.
Notes: "A Signet book."

Includes index.

"Suggestions for further reading":  p. 458-459.