@book{2924,
	author = {WHO/UNICEF Joint Monitoring Programme for Water Supply and Sanitation},
	title = {Progress on drinking-water and sanitation : },
	publisher = {WHO,},
	year = {2008.},
	address = {Geneva :},
	url = {https://apps.who.int/iris/bitstream/handle/10665/43931/9789241563673_eng.pdf?sequence=1&isAllowed=y}
}