@book{120837,
	author = {Roberston, Ricardo.},
	title = {Quiere usted saber italiano en diez días?},
	publisher = {Editorial Ramón Sopena},
	year = {1973]},
	series = {Métodos Roberston},
	address = {Barcelona},
	edition = {Novísima ed. corr. y aum.}
}