Dyfyniad APA

Singh, J. W. (2009). Happiness: Gain and retain. Viva Books.

Dyfyniad Arddull Chicago

Singh, Just Win. Happiness: Gain and Retain. New Delhi: Viva Books, 2009.

Dyfyniad MLA

Singh, Just Win. Happiness: Gain and Retain. Viva Books, 2009.

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