Historical Dictionary of Chinese Intelligence
I. C. Smith & Nigel West
MI6: British Secret Intelligence Service Operations 1909-45
Nigel West
Churchill's Spy Files: MI5's Top-Secret Wartime Reports
Encyclopedia of Political Assassinations
Historical Dictionary of Sexspionage
Historical Dictionary of British Intelligence
Historical Dictionaries of Intelligence and Counterintelligence (1)
Historical Dictionary of International Intelligence
Historical Dictionary of World War II Intelligence
Historical Dictionaries of Intelligence and Counterintelligence (7)
TRIPLEX: Secrets From the Cambridge Spies
Nigel West & Oleg Tsarev
Snow
Nigel West & Madoc Roberts
The Kompromat Conspiracy: The Truth About the Trump Dossier
The a to Z of British Intelligence
The A to Z Guide Series (1)
Operation Garbo
Double Cross in Cairo
MI5 in the Great War
The a to Z of Sexspionage
MI5
Spycraft Secrets: An Espionage A-Z