Tomasello, M. (2009). Why we cooperate: Based on the 2008 Tanner lectures on human values at Stanford University. MIT Press.
Lua i Stíl Chicago (17ú heag.)Tomasello, Michael. Why We Cooperate: Based on the 2008 Tanner Lectures on Human Values at Stanford University. Cambridge, MA: MIT Press, 2009.
Lua MLA (9ú heag.)Tomasello, Michael. Why We Cooperate: Based on the 2008 Tanner Lectures on Human Values at Stanford University. MIT Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.