Hammer, M. J. (2008). Water and wastewater technology (6th ed.). Pearson Educational International.
Cita Chicago (17th ed.)Hammer, Mark J. Water and Wastewater Technology. 6th ed. Upper Saddle River, N.J: Pearson Educational International, 2008.
Cita MLA (9th ed.)Hammer, Mark J. Water and Wastewater Technology. 6th ed. Pearson Educational International, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.