APA (7th ed.) Citation

West. (2006). At her Majesty's Secret Service: The chiefs of Britain's Intelligence Agency, M16. Greenhill Books.

Chicago Style (17th ed.) Citation

West. At Her Majesty's Secret Service: The Chiefs of Britain's Intelligence Agency, M16. London: Greenhill Books, 2006.

MLA (8th ed.) Citation

West. At Her Majesty's Secret Service: The Chiefs of Britain's Intelligence Agency, M16. Greenhill Books, 2006.

Warning: These citations may not always be 100% accurate.