APA (7th ed.) Citation

West, N. (1981). MI5, British security service operations 1909-1945. Bodley Head.

Chicago Style (17th ed.) Citation

West, Nigel. MI5, British Security Service Operations 1909-1945. London: Bodley Head, 1981.

MLA (9th ed.) Citation

West, Nigel. MI5, British Security Service Operations 1909-1945. Bodley Head, 1981.

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