Hammer, M. J. (2020). Water and Wastewater technology (6th.). Pearson.
Lua i Stíl Chicago (17ú heag.)Hammer, Mark J. Water and Wastewater Technology. 6th. New Delhi: Pearson, 2020.
Lua MLA (9ú heag.)Hammer, Mark J. Water and Wastewater Technology. 6th. Pearson, 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.