Cita APA (7a ed.)

Fox, J. A., Levin, J., & Fridel, E. E. (2019). Extreme killing: Understanding serial and mass murder (Fourth edition.). Sage.

Cita Chicago Style (17a ed.)

Fox, James Alan, Jack Levin, y Emma E. Fridel. Extreme Killing: Understanding Serial and Mass Murder. Fourth edition. Los Angeles London New Delhi Singapore Washington, DC Melbourne: Sage, 2019.

Cita MLA (9a ed.)

Fox, James Alan, et al. Extreme Killing: Understanding Serial and Mass Murder. Fourth edition. Sage, 2019.