Cita APA (7a ed.)

Frey, R. G., & Morris, C. W. (1991). Violence, terrorism, and justice. University Press.

Cita Chicago Style (17a ed.)

Frey, R. G., y Christopher W. Morris. Violence, Terrorism, and Justice. Cambridge [etc.]: University Press, 1991.

Cita MLA (9a ed.)

Frey, R. G., y Christopher W. Morris. Violence, Terrorism, and Justice. University Press, 1991.