Showing 1 - 20 results of 198 for search '', query time: 0.32s Refine Results
  1. 1
    The cipher of Roger Bacon /
    Book
  2. 2
    Cryptology yesterday, today, and tomorrow /
    Published 1987
    Book
  3. 3
    Secret languages : communicating in codes and ciphers /
    by Bielewicz, Julian A.
    Published 1980
    Book
  4. 4
    Codes and ciphers /
    by D'Agapeyeff, A. (Alexander)
    Published 1939
    Book
  5. 5
    Cryptography, the science of secret writing /
    by Smith, Laurence Dwight
    Published 1943
    Book
  6. 6
    Secret and urgent : the story of codes and ciphers /
    by Pratt, Fletcher, 1897-1956
    Published 1939
    Book
  7. 7
    Mathematical recreations & essays /
    Book
  8. 8
    All kinds of codes /
    by Babson, Walt
    Published 1976
    Book
  9. 9
    Mathematical recreations & essays /
    Book
  10. 10
    Mathematical recreations & essays /
    Book
  11. 11
    Cryptanalysis for microcomputers /
    by Foster, Caxton C., 1929-
    Published 1982
    Book
  12. 12
    The Cat's elbow and other secret languages /
    Published 1982
    Book
  13. 13
    Mathematical recreations & essays /
    Book
  14. 14
    Cipher systems : the protection of communications /
    by Beker, Henry
    Published 1982
    Book
  15. 15
    Mr. Babbage's secret : the tale of a cypher and APL /
    by Franksen, Ole Immanuel
    Published 1985
    Book
  16. 16
    Analysis and design of stream ciphers /
    by Rueppel, Rainer A., 1955-
    Published 1986
    Book
  17. 17
    Codes and ciphers /
    by D'Agapeyeff, A. (Alexander)
    Published 1974
    Book
  18. 18
    Edgar Allan Poe's contributions to Alexander's weekly messenger /
    by Poe, Edgar Allan, 1809-1849
    Published 1973
    Book
  19. 19
    Secret and urgent : the story of codes and ciphers /
    by Pratt, Fletcher, 1897-1956
    Published 1942
    Book
  20. 20
    Loads of codes and secret ciphers /
    by Janeczko, Paul B.
    Published 1984
    Book
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