APA aipamena

Tyler, T. R. (2011). Why people cooperate: The role of social motivations. Princeton University Press.

Chicago Style aipamena

Tyler, Tom R. Why People Cooperate: The Role of Social Motivations. Princeton, New Jersey: Princeton University Press, 2011.

MLA aipamena

Tyler, Tom R. Why People Cooperate: The Role of Social Motivations. Princeton University Press, 2011.