

@booklet {1493,
	title = {Rapid Sand Filtration},
	year = {2015},
	publisher = {Sustainable Sanitation and Water Management http://www.sswm.info/category/implementation-tools/water-purification/hardware/semi-centralised-drinking-water-treatme-14 Last aAccesswed July 2015.},
	type = {Electronic Article},
	author = {Bruni, M. and Spuhler, D.}
}
