Lorenz, K. (1969). On aggression. Bantam Books.
Cita Chicago (17th ed.)Lorenz, Konrad. On Aggression. Nueva York: Bantam Books, 1969.
Cita MLA (9th ed.)Lorenz, Konrad. On Aggression. Bantam Books, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.