Codes and ciphers.
By: London, New York, Oxford University Press.
Publisher: Gale Research Co.; Gale Research Co
Published: 1974
Place of publication: Detroit
Language: eng
Number of pages: 160
Subjects: Ciphers.; Cryptography.
Description: 160 p. 22 cm
Notes: Bibliography: p. [159]-160.
Reprint of the 1939 ed., issued in series: Meridian books.