Lua APA (7ú heag.)
Tyler, T. R. (2010). Why people cooperate: The role of social motivations. Princeton University Press.
Lua i Stíl Chicago (17ú heag.)
Tyler, Tom R. Why People Cooperate: The Role of Social Motivations. Princeton: Princeton University Press, 2010.
Lua MLA (9ú heag.)
Tyler, Tom R. Why People Cooperate: The Role of Social Motivations. Princeton University Press, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.