Goel, P. K. (2006). Water Pollution: Causes, Effects and Control. New Age International.
Citazione stile Chigago Style (17a edizione)Goel, P. K. Water Pollution: Causes, Effects and Control. New Delhi: New Age International, 2006.
Citatione MLA (9a ed.)Goel, P. K. Water Pollution: Causes, Effects and Control. New Age International, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.