Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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