APA (7th ed.) Citation

Alvarez, D. J. (2000). Secret messages: Codebreaking and American diplomacy, 1930-1945. University Press of Kansas.

Chicago Style (17th ed.) Citation

Alvarez, David J. Secret Messages: Codebreaking and American Diplomacy, 1930-1945. Lawrence: University Press of Kansas, 2000.

MLA (9th ed.) Citation

Alvarez, David J. Secret Messages: Codebreaking and American Diplomacy, 1930-1945. University Press of Kansas, 2000.