@book{47954,
	author = {Moreno Cuestas, Freddy Arnoldo and Nuñez Pardo, Astrid,},
	title = {Teacher-developed materials for language teaching and learning.},
	publisher = {Universidad Externado de Colombia,},
	year = {2018.},
	address = {Bogotá :},
	edition = {Primera edición.},
	note = {Incluye índice.}
}