@book{3239,
	author = {Adams, John and World Health Organization},
	title = {Water, sanitation and hygiene standards for schools in low-cost settings / },
	publisher = {WHO,},
	year = {2009.},
	address = {Geneva :},
	url = {https://apps.who.int/iris/bitstream/handle/10665/44159/9789241547796_eng.pdf?sequence=1&isAllowed=y}
}