Dyfyniad APA

Ariely, D. (2009). Predictably irrational: The hidden forces that shape our decisions (Revised and expanded edition.). HarperCollins.

Dyfyniad Arddull Chicago

Ariely, Dan. Predictably Irrational: The Hidden Forces That Shape Our Decisions. Revised and expanded edition. London: HarperCollins, 2009.

Dyfyniad MLA

Ariely, Dan. Predictably Irrational: The Hidden Forces That Shape Our Decisions. Revised and expanded edition. HarperCollins, 2009.

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