@book{227592,
	author = {James, E. L. and Barruetabeña Diez, María del Puerto.},
	title = {Cincuenta sombras liberadas},
	publisher = {Vintage Español},
	year = {2012.},
	series = {La trilogía cincuenta sombras},
	address = {New York},
	edition = {Primera ed. Vintage Español.}
}