@book{30812,
	author = {Tyerman, Christopher, and Belza Palomar, Cecília },
	title = {Las guerras de Dios :},
	publisher = {Critica,},
	year = {2007.},
	series = {Serie mayor },
	address = {Barcelona :},
	note = {Trad. de: God's war : a new history of the Crusades.}
}