Leonov,Nikolai. (1990). Violence: Sources and limits. Novosti Publishing House.
Chicago Edition CitationLeonov,Nikolai. Violence: Sources and Limits. Moscow: Novosti Publishing House, 1990.
Cita MLALeonov,Nikolai. Violence: Sources and Limits. Novosti Publishing House, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.