Lunde, P. (2009). The book of codes: Understanding the world of hidden messages : an illustrated guide to signs, symbols, ciphers, and secret languages. University of California Press.
Chicago Style (17th ed.) CitationLunde, Paul. The Book of Codes: Understanding the World of Hidden Messages : An Illustrated Guide to Signs, Symbols, Ciphers, and Secret Languages. Berkeley: University of California Press, 2009.
MLA (9th ed.) CitationLunde, Paul. The Book of Codes: Understanding the World of Hidden Messages : An Illustrated Guide to Signs, Symbols, Ciphers, and Secret Languages. University of California Press, 2009.
Warning: These citations may not always be 100% accurate.