Παραπομπή APA

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

Παραπομπή Chicago Style

Hardy, John T. Climate Change: Causes, Effects and Solutions. England: John Wiley, 2003.

Παραπομπή MLA

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