Greenbaum, Sidney . Longman guide to english usage / Sidney Grennbaum , Janet Whitcut. - England : Longman , 1988. - xiv, 786p, : ill.,chart,graph ; 18cm . NULL ISBN: 0582556198 Rs. 446.25 Subjects--Index Terms: LINGUSTICS Dewey Class. No.: 428 / GRE/L