Singh, S. (2000). The code book: The science of secrecy from ancient Egypt to quantum cryptography (First Anchor Books edition.). Anchor Books.
Chicago-referens (17:e uppl.)Singh, Simon. The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography. First Anchor Books edition. New York: Anchor Books, 2000.
MLA-referens (8:e uppl.)Singh, Simon. The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography. First Anchor Books edition. Anchor Books, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.