Churchhouse, R. (2002). Codes and ciphers: Julius Caesar,the enigma and the internet. Cambridge University Press.
Chicago Edition CitationChurchhouse, Robert. Codes and Ciphers: Julius Caesar,the Enigma and the Internet. Cambridge: Cambridge University Press, 2002.
MLA Edition CitationChurchhouse, Robert. Codes and Ciphers: Julius Caesar,the Enigma and the Internet. Cambridge University Press, 2002.
Warning: These citations may not always be 100% accurate.