M16 the history of Secret Intelligence Service, 1909-1949 by Jeffret, Keith

Table of Contents: “…Essential reading for anyone interested in the history of espionage, the two World Wars, modern British government and the conduct of international relations in the first half of the twentieth century, MI6: The History of the Secret Intelligence Service, 1909-1949 is a uniquely important examination of the role and significance of intelligence in the modern world.…”

Malayan spymaster memoirs of a rubber planter, bandit fighter, and spy by Hembry, Boris

Secret wars one hundred years of British intelligence inside MI5 and MI6 by Thomas, Gordon 1933-