@book{91921,
	author = {Villafañe, Justo},
	title = {Introducción a la teoría de la imagen /},
	publisher = {Pirámide,},
	year = {2000.},
	series = {Colección Medios},
	address = {Madrid :},
	url = {http://www.loc.gov/catdir/enhancements/fy0836/85177550-d.html}
}