The Ultra Secret

Autori

• Frederick W. Winterbotham

Parametri

• Guerre
• Narrativa
• Saggistica
• Storia
• Storia del mondo

Maggiori informazioni sul libro

Operation Ultra was designed to intercept & decode German signals sent using Enigma, the top-secret German cypher machine. F.W. Winterbotham, was the man responsible for the organization, distribution & security of Ultra. This is his personal account of the operation.

Lingua: Inglese

Pubblicato: 1974