Dyfyniad APA

Anand, P. Happiness Explained. Oxford University Press.

Dyfyniad Arddull Chicago

Anand, Paul. Happiness Explained. Oxford University Press.

Dyfyniad MLA

Anand, Paul. Happiness Explained. Oxford University Press.

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