Churchhouse, R. F. (2002). Codes and ciphers: Julius Caesar, the Enigma, and the internet. Cambridge University Press.
シカゴスタイル引用形Churchhouse, R. F. Codes and Ciphers: Julius Caesar, the Enigma, and the Internet. Cambridge ; New York: Cambridge University Press, 2002.
MLA引用形式Churchhouse, R. F. Codes and Ciphers: Julius Caesar, the Enigma, and the Internet. Cambridge University Press, 2002.
警告: この引用は必ずしも正確ではありません.