@book{93908,
	author = {Avelar Robledo , Juan Uriel},
	title = {Alternativa de tratamiento de aguas residuales mediante humedales artificiales de flujo subsuperficial},
	publisher = {El autor,},
	year = {2007},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/105479.pdf}
}