APA (7th ed.) Citation

Norman, B. (1973). Secret warfare : the battle of codes and ciphers / (by) Bruce Norman: The battle of codes and ciphers. David and Charles.

Chicago Style (17th ed.) Citation

Norman, Bruce. Secret Warfare : The Battle of Codes and Ciphers / (by) Bruce Norman: The Battle of Codes and Ciphers. Newton Abbot: David and Charles, 1973.

MLA (9th ed.) Citation

Norman, Bruce. Secret Warfare : The Battle of Codes and Ciphers / (by) Bruce Norman: The Battle of Codes and Ciphers. David and Charles, 1973.

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