@book{11933,
	author = {James, E.L. and Peña Minguell, Pilar de la,  Trías Belo, Helena},
	title = {Cincuenta sombras de Grey},
	publisher = {Randon House Mondadori,},
	year = {2012},
	address = {México :},
	edition = {1a ed.}
}