Dyfyniad APA

Powers, B. (2013). Cold, hungry and in the dark: Exploding the natural gas supply myth. New Society Publishers.

Dyfyniad Arddull Chicago

Powers, Bill. Cold, Hungry and in the Dark: Exploding the Natural Gas Supply Myth. Gabriola, BC: New Society Publishers, 2013.

Dyfyniad MLA

Powers, Bill. Cold, Hungry and in the Dark: Exploding the Natural Gas Supply Myth. New Society Publishers, 2013.

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