APA استشهاد

Hardy, J. T. (2003). Climate change: ; Causes, effects and solutions. John Wiley & sons.

استشهاد بنمط شيكاغو

Hardy, John T. Climate Change: ; Causes, Effects and Solutions. USA: John Wiley & sons, 2003.

MLA استشهاد

Hardy, John T. Climate Change: ; Causes, Effects and Solutions. John Wiley & sons, 2003.