APA (7th ed.) Citation

West. (2005). MASK: MI5's penetration of the Communist Party of Great Britain. Routledge.

Chicago Style (17th ed.) Citation

West. MASK: MI5's Penetration of the Communist Party of Great Britain. London: Routledge, 2005.

MLA (8th ed.) Citation

West. MASK: MI5's Penetration of the Communist Party of Great Britain. Routledge, 2005.

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