Arnold, E. (2008). Explaining altruism: A simulation-based approach and its limits. Ontos Verlag.
Lua i Stíl Chicago (17ú heag.)Arnold, Eckhart. Explaining Altruism: A Simulation-based Approach and Its Limits. Frankfurt: Ontos Verlag, 2008.
Lua MLA (9ú heag.)Arnold, Eckhart. Explaining Altruism: A Simulation-based Approach and Its Limits. Ontos Verlag, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.