APA-Zitierstil (7. Ausg.)

(2002). Enigma: Codebreaking and the Second World War ; the true story through contemporary documents (1. publ.). Public Record Office.

Chicago-Zitierstil (17. Ausg.)

Enigma: Codebreaking and the Second World War ; the True Story Through Contemporary Documents. 1. publ. Richmond: Public Record Office, 2002.

MLA-Zitierstil (9. Ausg.)

Enigma: Codebreaking and the Second World War ; the True Story Through Contemporary Documents. 1. publ. Public Record Office, 2002.