Cita APA (7a ed.)

Bolz, F. A., & Hershey, E. (1979). Hostage cop: The story of the New York City police hostage negotiating team and the man who leads it. Rawson.

Cita Chicago Style (17a ed.)

Bolz, Frank A., y Edward Hershey. Hostage Cop: The Story of the New York City Police Hostage Negotiating Team and the Man Who Leads It. New York: Rawson, 1979.

Cita MLA (9a ed.)

Bolz, Frank A., y Edward Hershey. Hostage Cop: The Story of the New York City Police Hostage Negotiating Team and the Man Who Leads It. Rawson, 1979.