Thirty secret years
Subtitle: A.G. Denniston's work in signals intelligence, 1914-1944
By: Robin Denniston.
Contributors: Denniston, Alastair Guthrie, 1881-1941.
Publisher: Polperro Heritage Press
Published: 2007
Place of publication: Clifton-upon-Teme, Worcestershire
Language: eng
Number of pages: 172
ISBN-13: 9780955364808
Subjects: Denniston, Alastair Guthrie, -- 1881-1941; Cryptography -- Great Britain -- History -- 20th century; World War, 1914-1918 -- Secret service -- Great Britain; World War, 1939-1945 -- Secret service -- Great Britain; World War, 1914-1918 -- Cryptography -- Great Britain; World War, 1939-1945 -- Cryptography -- Great Britain; Cryptographers -- Scotland -- Biography
Genres: Biography.
Notes: Includes chapters written by A.G. Denniston.

Includes bibliographical references (p. 171-172).