APA Citation

Epstein, S., & Epstein, B. W. (1956). The first book of codes and ciphers. New York: Franklin Watts.

Trích dẫn kiểu Chicago

Epstein, Sam., và Beryl Williams Epstein. The First Book of Codes and Ciphers. New York: Franklin Watts, 1956.

MLA Citation

Epstein, Sam., và Beryl Williams Epstein. The First Book of Codes and Ciphers. New York: Franklin Watts, 1956.

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