Dyfyniad APA

Quaschning, V. (2005). Understanding renewable energy systems. London: Earthscan.

Dyfyniad Arddull Chicago

Quaschning, Volker. Understanding Renewable Energy Systems. London: Earthscan, 2005.

Dyfyniad MLA

Quaschning, Volker. Understanding Renewable Energy Systems. London: Earthscan, 2005.

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