@book{46999,
	author = {Von Sperling, Marcos and Sánchez Ortiz, Iván Andrés,},
	title = {Lodos Activados :},
	publisher = {Universidad de Nariño,},
	year = {2014.},
	address = {San Juan de Pasto, Nariño :},
	edition = {1 /},
	note = {Incluye tabla de contenido.}
}