Sources
- Fair, Gordon Maskew, Geyer, John Charles & Okun, Daniel Alexander Water and Wastewater Engineering (Volume 2) John Wiley & Sons (1968)
- Hammer, Mark J. Water and Waste-Water Technology John Wiley & Sons (1975) ISBN 0-471-34726-4
- Metcalf & Eddy Wastewater Engineering McGraw-Hill (1972)
Read more about this topic: Organisms Used In Water Purification
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