@book{59907,
	author = {Erben, Heinrich Karl. and Gutiérrez Larraga, Juan Antonio.},
	title = {Estamos solos en el cosmos / },
	publisher = {Planeta, },
	year = {1985.},
	series = {Al filo del tiempo},
	address = {Barcelona : },
	edition = {[1ª ed.].},
	note = {Indice.}
}