APA (7th ed.) Citation

West, N. (2006). At her majesty's secret service: The chiefs of Britain's Intelligence Agency, M16. Greenhill Books [u.a.].

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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