@book{29418,
	author = {Ketele, Jean-Marie de and Roegiers, Xavier},
	title = {Metodología para la recogida de información.},
	publisher = {La Muralla,},
	year = {1995.},
	series = {Colección Aula Abierta / Casanova, María Antonia},
	address = {Madrid :},
	edition = {1a ed.}
}