Cita APA (7a ed.)

Havil, A. (2002). The spy who stayed out in the cold: The secret life of FBI double agent Robert Hanssen. St. Martin's Press.

Cita Chicago Style (17a ed.)

Havil, Adrian. The Spy Who Stayed Out in the Cold: The Secret Life of FBI Double Agent Robert Hanssen. New York, NY: St. Martin's Press, 2002.

Cita MLA (9a ed.)

Havil, Adrian. The Spy Who Stayed Out in the Cold: The Secret Life of FBI Double Agent Robert Hanssen. St. Martin's Press, 2002.