Cita APA (7th ed.)
Goel, P. K. (1997). Water pollution: Courses, effects and control. New Age International.
Cita Chicago (17th ed.)
Goel, P. K. Water Pollution: Courses, Effects and Control. Calcutta: New Age International, 1997.
Cita MLA (9th ed.)
Goel, P. K. Water Pollution: Courses, Effects and Control. New Age International, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.