Very special intelligence : the story of the Admiralty's Operational Intelligence Centre 1939-1945 - Beesly, Patrick, 1913-1986. (New York : Ballantine Books, 1981)
First published in Great Britain in 1977 by Hamish Hamilton.
Includes bibliographical references (p. 271-272) and index.
Keywords: Great Britain. -- Admiralty. -- Operational Intelligence Centre; World War, 1939-1945 -- Naval operations, British; Intelligence service -- United Kingdom