Cita APA (7th ed.)
Hammer Mark J. (2004). Water and waste water technology (5 th ed.). Prentice Hall India.
Cita Chicago (17th ed.)
Hammer Mark J. Water and Waste Water Technology. 5 th ed. New Delhi: Prentice Hall India, 2004.
Cita MLA (9th ed.)
Hammer Mark J. Water and Waste Water Technology. 5 th ed. Prentice Hall India, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.