APA (7th ed.) Citation

Jean Cooke. Codes and Ciphers (1 st.). Wayland Ltd.

Chicago Style (17th ed.) Citation

Jean Cooke. Codes and Ciphers. 1 st. UK: Wayland Ltd.

MLA (9th ed.) Citation

Jean Cooke. Codes and Ciphers. 1 st. Wayland Ltd.

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