Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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