Blackwood, G. L., & Henry, J. (2009). Mysterious messages: A history of codes and ciphers. Dutton Children's Books.
Style de citation Chicago (17e éd.)Blackwood, Gary L., et Jason Henry. Mysterious Messages: A History of Codes and Ciphers. New York, N.Y.: Dutton Children's Books, 2009.
Style de citation MLA (8e éd.)Blackwood, Gary L., et Jason Henry. Mysterious Messages: A History of Codes and Ciphers. Dutton Children's Books, 2009.
Attention : ces citations peuvent ne pas être correctes à 100%.