APA ציטוט

Goel P K. (2006). Water Pollution: Causes,effects and control. New Age International.

Chicago Edition Citation

Goel P K. Water Pollution: Causes,effects and Control. New delhi: New Age International, 2006.

ציטוט MLA

Goel P K. Water Pollution: Causes,effects and Control. New Age International, 2006.