Cita APA (7a ed.)

Ruggiero, V., Sim, J., & Ryan, M. (1995). Western European penal systems: A critical anatomy. Sage [etc.].

Cita Chicago Style (17a ed.)

Ruggiero, Vincenzo, Joe Sim, y Mick Ryan. Western European Penal Systems: A Critical Anatomy. London [etc.]: Sage [etc.], 1995.

Cita MLA (9a ed.)

Ruggiero, Vincenzo, et al. Western European Penal Systems: A Critical Anatomy. Sage [etc.], 1995.