" Singh, S. The code book: The secret history of codes and code-breaking. Forth Estate Ltd.
Chicagoスタイル(17版)引用形式" Singh, Simon". The Code Book: The Secret History of Codes and Code-breaking. Forth Estate Ltd.
MLA(9版)引用形式" Singh, Simon". The Code Book: The Secret History of Codes and Code-breaking. Forth Estate Ltd.
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