O'Connell, R. L. (1997). Ride of the second horseman: The birth and death of war (Pbk. ed.). Oxford University Press.

O'Connell, Robert L. Ride of the Second Horseman: The Birth and Death of War. Pbk. ed. New York: Oxford University Press, 1997.

O'Connell, Robert L. Ride of the Second Horseman: The Birth and Death of War. Pbk. ed. Oxford University Press, 1997.