Lorenz, K. (1971). On aggression. Bantam Books.
Lua i Stíl Chicago (17ú heag.)Lorenz, Konrad. On Aggression. New York: Bantam Books, 1971.
Lua MLA (9ú heag.)Lorenz, Konrad. On Aggression. Bantam Books, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.