Cita APA (7a ed.)

Safarik, M. E., & Ramsland, K. M. (2020). Spree killers: Practical classifications for law enforcement and criminology. CRC Press.

Cita Chicago Style (17a ed.)

Safarik, Mark E., y Katherine M. Ramsland. Spree Killers: Practical Classifications for Law Enforcement and Criminology. Boca Raton London New York: CRC Press, 2020.

Cita MLA (9a ed.)

Safarik, Mark E., y Katherine M. Ramsland. Spree Killers: Practical Classifications for Law Enforcement and Criminology. CRC Press, 2020.