APA (7th ed.) Citation

McKay, S. (2023). 50 codes that changed the world: Discover and solve the ciphers that altered history. Headline Publishing Group.

Chicago Style (17th ed.) Citation

McKay, Sinclair. 50 Codes That Changed the World: Discover and Solve the Ciphers That Altered History. London: Headline Publishing Group, 2023.

MLA (8th ed.) Citation

McKay, Sinclair. 50 Codes That Changed the World: Discover and Solve the Ciphers That Altered History. Headline Publishing Group, 2023.

Warning: These citations may not always be 100% accurate.