Seizing the Enigma 
Subtitle: The Race to Break the German U-Boat Codes 1939-1943 (10 1 1/2 cassettes)
Contributors: Bernard Mayes (Contributor)
Publisher: Blackstone Audiobooks; Blackstone Audio, Inc.
Published: February 1995
Language: eng
Format: Audio Cassette
ISBN-13: 9780786106530
Subjects: Military - Strategy; Audio Adult: Other; Audio - Nonfiction (Unabridged); Unabridged Audio - History