Dyfyniad APA

Hardy, J. T. (2003). Climate change causes, effects and solutions. London: John Wiley & Sons.

Dyfyniad Arddull Chicago

Hardy, John T. Climate Change Causes, Effects and Solutions. London: John Wiley & Sons, 2003.

Dyfyniad MLA

Hardy, John T. Climate Change Causes, Effects and Solutions. London: John Wiley & Sons, 2003.

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