Cita APA (7a ed.)

Greenstone, J. L. (2005). The elements of police hostage and crisis negotiations: Critical incidents and how to respond to them. Routledge.

Cita Chicago Style (17a ed.)

Greenstone, James L. The Elements of Police Hostage and Crisis Negotiations: Critical Incidents and How to Respond to Them. Oxfordshire, England ; New York: Routledge, 2005.

Cita MLA (9a ed.)

Greenstone, James L. The Elements of Police Hostage and Crisis Negotiations: Critical Incidents and How to Respond to Them. Routledge, 2005.