![](/sites/default/files/reference_icons/US%20EPA%201995%20Surface%20Disposal%20of%20Sewage%20Sludge%20and%20Domestic%20Septage.jpg)
U.S. EPA
(1995):
Surface Disposal of Sewage Sludge and Domestic septage. Process Design Manual.
Washington:
United States Environmental Protection Agency
URL
[Accessed: 24.08.2010]