@book{169845,
	author = {Vives, Teodoro.},
	title = {El cometa Halley},
	publisher = {Progensa},
	year = {1985.},
	series = {Ciencias de la naturaleza},
	address = {Madrid},
	edition = {1a ed. española.},
	note = {ELE 89-00856D 27/Mar/1989 p}
}