Arnold, E. (2008). Explaining altruism: A simulation-based approach and its limits. Ontos Verlag.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रArnold, Eckhart. Explaining Altruism: A Simulation-based Approach and Its Limits. Frankfurt: Ontos Verlag, 2008.
एमएलए (9वां संस्करण) प्रशस्ति पत्रArnold, Eckhart. Explaining Altruism: A Simulation-based Approach and Its Limits. Ontos Verlag, 2008.
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