@book{94961,
	author = {Aguilar Percastegui, Marisol.},
	title = {Impacto del uso de aguas residuales en el Valle del Mezquital, Hidalgo /},
	publisher = {El autor,},
	year = {2007.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/106568.pdf}
}