Cita APA (7th ed.)
Tyler, T. R. (2010). Why people cooperate: The role of social motivations. Princeton University Press.
Cita Chicago (17th ed.)
Tyler, Tom R. Why People Cooperate: The Role of Social Motivations. Princeton: Princeton University Press, 2010.
Cita MLA (9th ed.)
Tyler, Tom R. Why People Cooperate: The Role of Social Motivations. Princeton University Press, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.