@book{53115,
	author = {Campos Arenas, Agustín,},
	title = {Métodos mixtos de investigación :},
	publisher = {Cooperativa Editorial Magisterio,},
	year = {2009.},
	series = {Colección investigar magisterio},
	address = {Bogotá :},
	edition = {Primera edición.}
}