Soars, Liz, 1945- New headway elementary : workbook with key / John Soars, Liz Soars and Sylvia Wheeldon. - 3rd ed. - Oxford : Oxford University Press, c2006. - 86 p. : ill ; 28 cm. ISBN: 9780194715102 Subjects--Topical Terms: English language.English language--Grammar--Problems, exercises, etc.