Edge, Julian Mistakes and correction. - 1st ed. - London : Longman, 1989. - 70 p. - Longman Keys to Language Teaching / Grant, Neville . "Errores y correcciones". ISBN: 0582746264 Subjects--Topical Terms: EnseƱanza de la lenguaLengua inglesa Index Terms--Genre/Form: Texto Universal Decimal Class. No.: 802.0