Tohutoro APA (7th ed.)
Churchhouse, R. F. (2002). Codes and ciphers: Julius Caesar, the Enigma, and the internet. Cambridge University Press.
Tohutoru Kātū Chicago (17th ed.)
Churchhouse, R. F. Codes and Ciphers: Julius Caesar, the Enigma, and the Internet. Cambridge ; New York: Cambridge University Press, 2002.
Tohutoro MLA (9th ed.)
Churchhouse, R. F. Codes and Ciphers: Julius Caesar, the Enigma, and the Internet. Cambridge University Press, 2002.
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