Dyfyniad APA

Trimble, M. R. (2012). Why humans like to cry: Tragedy, evolution and the brain. Oxford University Press.

Dyfyniad Arddull Chicago

Trimble, Michael R. Why Humans like to Cry: Tragedy, Evolution and the Brain. Oxford, England: Oxford University Press, 2012.

Dyfyniad MLA

Trimble, Michael R. Why Humans like to Cry: Tragedy, Evolution and the Brain. Oxford University Press, 2012.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.