Ressler, R. K., & Perkins, T. (2016). Whoever fights monsters: My twenty years tracking serial killers for the fbi (Unabridged.). Tantor Media.
Cita Chicago Style (17a ed.)Ressler, Robert K., y Tom Perkins. Whoever Fights Monsters: My Twenty Years Tracking Serial Killers for the Fbi. Unabridged. Old Saybrook: Tantor Media, 2016.
Cita MLA (8a ed.)Ressler, Robert K., y Tom Perkins. Whoever Fights Monsters: My Twenty Years Tracking Serial Killers for the Fbi. Unabridged. Tantor Media, 2016.
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