The hidden war /

Bibliographic Details
Main Author:	Haldane, Robert A (Author)
Format:	Book
Language:	English
Published:	New York : St. Martin's Press, 1978.
Subjects:	World War, 1939-1945 > Cryptography. World War, 1939-1945 > Secret service. Guerre mondiale, 1939-1945 > Cryptographie. Guerre mondiale, 1939-1945 > Service secret. Cryptography. Secret service. 1939-1945 World War 2 > Military cryptology

Description
Physical Description:	224 pages, 4 unnumbered leaves of plates : illustrations ; 23 cm
Bibliography:	Includes bibliographical references (pages 198-202) and index.
ISBN:	0312371977 9780312371975 0709164866 9780709164869