@book{40808,
	author = {Insuasti Bravo, Liliana and Burbano Orjuela, Hernan and Gobernación del Nariño},
	title = {El Suelo :},
	publisher = {Universidad del Nariño,},
	year = {2013.},
	address = {Nariño, Colombia :},
	note = {Incluye Indice y Bibliografìa.}
}