Cita APA (7th ed.)
Goel, P. K. (2016). Water pollution: Causes, effects and control (Rev 2nd ed.). New Age International.
Cita Chicago (17th ed.)
Goel, P K. Water Pollution: Causes, Effects and Control. Rev 2nd ed. Kolkata: New Age International, 2016.
Cita MLA (9th ed.)
Goel, P K. Water Pollution: Causes, Effects and Control. Rev 2nd ed. New Age International, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.