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Room 40 : British naval intelligence 1914-18 /

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Bibliographic Details
Main Author: Beesly, Patrick, 1913-1986
Format: Book
Language:English
Published: London : Hamish Hamilton, 1982.
Subjects:
World War, 1914-1918 > Cryptography.
World War, 1914-1918 > Secret service > Great Britain.
Description
Physical Description:xi, 338 pages, 16 unnumbered pages of plates : illustrations, maps ; 23 cm.
ISBN:0241108640