@book{150280,
	author = {Presedo, Francisco. and Valverde, José María},
	title = {Las claves del antiguo Egypto},
	publisher = {Planeta},
	year = {1993.},
	series = {Las claves de la historia},
	address = {Barcelona},
	edition = {1a ed.},
	note = {On cover: 3000-30 a.C.}
}