@book{69185,
	author = {Crites, Ron, and Tchobanoglous, George, },
	title = {Tratamiento de aguas residuales en pequeñas poblaciones},
	publisher = {McGraw Hill, },
	year = {c2000},
	address = {Santafé de Bogotá :},
	edition = {1a ed.},
	note = {Incluye apéndice e índice}
}