Dyfyniad APA

Weart, S. R. (2005). The discovery of global warming. Viva Books.

Dyfyniad Arddull Chicago

Weart, Spencer R. The Discovery of Global Warming. New Delhi: Viva Books, 2005.

Dyfyniad MLA

Weart, Spencer R. The Discovery of Global Warming. Viva Books, 2005.

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