@book{9178,
	author = {Snozzi, Mario and World Health Organization. Water, Sanitation and Health Team.},
	title = {Assessing microbial safety of drinking water : improving approaches and methods.},
	publisher = {IWA Publishing,},
	year = {2003.},
	series = {(WHO drinking water quality series).},
	address = {London : },
	note = {Published on behalf of the World Health Organization and the Organisation for economic Co-operation and Development by IWA Publishing.}
}