Cita APA (7a ed.)

Torr, J. D. (2004). Guns and crime. Greenhaven Press.

Cita Chicago Style (17a ed.)

Torr, James D. Guns and Crime. San Diego, Calif. [u.a.]: Greenhaven Press, 2004.

Cita MLA (8a ed.)

Torr, James D. Guns and Crime. Greenhaven Press, 2004.