U-boat hunters
Subtitle: code breakers, divers and the defeat of the U-boats, 1914-1918
By: Robert M. Grant.
Publisher: Naval Institute Press
Published: 2003
Place of publication: Annapolis, Md
Language: eng
Number of pages: 178
Subjects: Great Britain. -- Royal Navy -- History -- World War, 1914-1918.; World War, 1914-1918 -- Naval operations, British.; World War, 1914-1918 -- Naval operations, German.; World War, 1914-1918 -- Naval operations -- Submarine.; Submarines (Ships) -- Germany -- History -- World War, 1914-1918.
Description: "In this book, the author explains how the code breakers at the Admiralty's Room 40 were able to break into the German naval codes during the First World War."--Jacket.
Notes: Originally published in 2003 by Periscope Publishing, Ltd. Cornwall.

Includes bibliographical references (p. 162-167) and index.