@book{122208,
	author = {Hawking, Stephen W.  and Sagan, Carl  and Gene Berry and Jeffrey Campbell Collection (Library of Congress)},
	title = {Historia del tiempo : },
	publisher = {Alianza Editorial, },
	year = {2011.},
	series = {Historia del tiempo, },
	address = {Madrid :},
	edition = {Tercera edición},
	note = {Incluye índice
}
}